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UR5HCFJL-P

UR5HCFJL-P

  • 厂商:

    SEMTECH

  • 封装:

  • 描述:

    UR5HCFJL-P - Zero-PowerTM Keyboard Encoder for Portable Systems - Semtech Corporation

  • 数据手册
  • 价格&库存
UR5HCFJL-P 数据手册
GreenCoderTM UR5HCFJL Zero-PowerTM Keyboard Encoder for Portable Systems HID & SYSTEM MANAGEMENT PRODUCTS, KEYCODERTM FAMILY DESCRIPTION The GreenCoder (UR5HCFJL) is a unique, Zero-PowerTM keyboard encoder that provides an optimum performance level for both batteryoperated and desktop systems. TM FEATURES • Optimized power-saving operation with idle consumption of less than 2 µA • Programmable LED dimming for further power savings • Ready to interface to Fujitsu's 7316, 7654,7656, and 1406 keyboards • 3, 3.3 and 5 Volt operation APPLICATIONS • Laptop/Notebook • Portable Equipment • Energy Star Compliant • Medical Instruments • Palmtops/ PDAs • Wakes-up only to respond to an external event and for a minimum period of time (2 mA current consumption) • Provides interface for external keyboard/keypad or other 8042compatible device • Custom versions available in small or large quantities The GreenCoderTM scans, debounces and encodes an 8 X 16 keyboard matrix, and will provide direct drive for 3 LEDs and two bi-directional channels for communication with a BIOScompatible system as well as an additional keyboard-compatible device. It fully supports all three PS/2 scan code sets and will implement up to three alternate keyboard layers for full 101/102 functionality. The GreenCoderTM employs a unique Self-Power ManagementTM method that reduces the power consumption of the keyboard sub-system to an unprecedented minimum, transparently and without user intervention. In “Active” mode, the encoder consumes less than 2 mA (Typ @5V). In “Sleep” mode the encoder consumes less than 2 µA (Typ @5V) The encoder can even nap between keystrokes and therefore it is rarely active and rarely consumes significant levels of power. A "stand-by" mode (600 µA Typ @5V) is entered for as long as a periodic task is active. After a programmed period of user inactivity the GreenCoderTM gradually dims the LEDs for further power savings. The GreenCoderTM is ideal for use in battery laptop/notebook designs and Energy Star compliant keyboards. GreenCoder is a trademark of Semtech Corp. All other trademarks belong to their respective companies. Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 PIN ASSIGNMENTS NL VX DRV _RESET NC NC VCC OSCI OSCO EKC1 R7 _RESET DRV VX NL R6 OPT KD KC EKC EKD CL C0 C1 C2 C3 C4 C5 C6 C7 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 VCC OSCI OSCO EKC1 R7 SL R5 R4 R3 R2 R1 R0 C8 C9 C10 C11 C12 C13 C14 C15 R6 OPT KD KC EKC EKD CL C0 C1 C2 C3 QFP SL R5 R4 R3 R2 R1 R0 C8 C9 C10 C11 DIP 6 OPT KD KC EKC EKD CL C0 C1 C2 C3 C4 7 1 R6 C4 NL C5 VX C6 NC C7 DRV NC _RESET GND C15 VCC C14 OSCI C13 OSCO C12 EKC1 NC NC 40 39 12 PLCC 34 17 18 23 29 28 R7 SL R5 R4 R3 R2 R1 R0 C8 C9 C10 1 www.semtech.com NC C5 C6 C7 GND NC C15 C14 C13 C12 C11 ORDERING CODE Package options 40-pin Plastic DIP 44-pin, Plastic PLCC 44-pin, Plastic QFP Pitch In mm’s 2 54 mm 1.27 mm 0.8 mm TA = -40°C to +85°C UR5HCFJL-XX-P UR5HCFJL-XX-FN UR5HCFJL-XX-FB XX = 16 for FKB7136,06 for FKB1406 matrix compatibility FUNCTIONAL DIAGRAM NL/CL/SL 3 Data Buffer Status LEDs R0-R7 Row Data Inputs EKC1 Interrupt Control Column Select Ouputs 16 Keyboard Encoder KC KD PC Communication Channel 8 C0-C15 16-Bit Timer Mode Control 8042 Emulation (External Keyboard) Communication Channel EKC EKD DRV Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 2 www.semtech.com FUNCTIONAL DESCRIPTION The GreenCoderTM consists functionally of seven major sections (see Functional Diagram, previous page). These are the Keyboard Encoder, a 16-Bit Timer, the Mode Control Unit, the Data Buffer, the Interrupt Control, the PC Communication Channel and the 8042 Emulation Channel. All sections communicate with each other and operate concurrently. KEYBOARD ENCODER The encoder scans a keyboard organized as an 8 row by 16 column matrix for a maximum of 128 keys. Smaller-size keyboards are supported provided that all unused row lines are pulled to Vcc. When active, the encoder selects 1 of the 16 column lines (C0-C15) every 512 µS and then reads the row data lines (R0-R7). A key closure is detected as a 0 in the corresponding position of the matrix. A complete scan cycle for the entire keyboard takes approximately 9.2 mS. Each key found pressed is debounced for a period of 20 mS. Once the key is verified, the corresponding key code(s) are loaded into the transmit buffer of the PC keyboard communication channel. PIN DEFINITIONS Mnemonic VCC VSS OSCI OSCO _RESET EKC1 DIP 40 20 39 38 1 37 PLCC 44 22 43 42 1 41 QFP 38 17 37 36 41 35 Type I I I O I I Name and Function Power Supply: +5V Ground Oscillator input Oscillator output Reset: apply 0V to provide orderly start-up External Keyboard Clock 1:connects to external keyboard clock line and is used to generate an interrupt for every clock line transmission Tie to Vcc Used for options selection Keyboard Clock: connects to PC keyboard port data line Keyboard Data: connects to PC port data line External Keyboard Data: connect to external keyboard clock line External Keyboard Clock 1: connects to external keyboard data line Wake-up line: used for sleep mode Row Data Inputs VX OPT KC KD EKD EXC DRV R0-R5 R6 R7 C0-C4 C5-C7 C8-C15 CL NL SL NC 3 6 8 7 10 9 2 29-34 5 36 12-16 17-19 28-21 11 4 35 4 7 9 8 11 10 43 2 4 3 6 5 I I I/O I/O I/O I/O 2 32-37 6 39 13-17 19-21 31-24 12 5 38 3,18 23,40 Note: An underscore before a 42 I 27-32 I 1 I 34 I 8-12 I/O Column Select Outputs: select 1 of 16 13-15 O columns 26-18 O 7 O Caps Lock LED 44 O Num Lock LED 33 O Scroll Lock LED 39-40 No Connects: these pins are unused 16,22 pin mnemonic denotes an active low signal. Scan Code Table Sets The UR5HCFJL supports all three scan code table sets. Scan Code Table Set 3 allows the user to program individual key attributes such as Make/Break and Typematic or Single-Touch Action. For more information, refer to the IBM Technical Reference Manuals. Custom scan code tables, including macros, are also available. Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 3 www.semtech.com KEYBOARD ENCODER, (CON’T) MODE CONTROL Embedded Numeric Keypad The GreenCoderTM implements an embedded numeric keypad. The Numeric Keypad Function is invoked by pressing the Num Lock Key. N-Key Rollover In this mode, the code(s) corresponding to each key press are transmitted to the host system as soon as that key is debounced, independently of the release of other keys. If a key is defined to be Typematic, the corresponding make code(s) will be transmitted while the key is held pressed. When a key is released, the corresponding break code(s) are then transmitted to the host system. If the released key happens to be the most recently pressed, then Typematic action is terminated. There is no limitation in the number of keys that can be held pressed at the same time. However, two or more key closures, occurring within a time interval less than 5 mS, will set an error flag and will not be processed. This procedure protects against effects of accidental key presses. FN Key A special FN Key has been implemented to perform the following functions while it is held pressed: • Function Key F1 becomes F11 • Function Key F2 becomes F12 • Control Left Key becomes Ctrl Right • Embedded numeric keypad keys become regular keys If Num Lock is not set: • Embedded numeric keypad keys provide the same codes as a numeric keypad when the Num Lock is not set (Arrow keys, PgUp, PgDn, etc.) “Ghost” Keys In any scanned contact switch matrix, whenever three keys defining a rectangle on the switch matrix are held pressed at the same time, a fourth key positioned on the fourth corner of the rectangle is sensed as being pressed. This is known as the “ghost” or “phantom” key problem. Although the problem cannot be totally eliminated without using external hardware, there are methods to neutralize its negative effects for most practical applications. Keys that are intended to Actual key presses be used in combinations or are likely to be pressed at the same time by a fast typist (i.e., keys located in adjacent positions on the keyboard) should be placed in the same row or column of the matrix whenever possible. Shift Keys “Ghost” Key (Shift, Alt, Ctrl) should not reside in the same row (or column) with any other keys. The GreenCoderTM has built-in mechanisms to detect the presence of a “ghost” key, thus eliminating the Figure 1: “Ghost” or “Phantom” Key necessity of external hardware. Problem Status LED indicators The controller provides an interface for three LED shift status indicators. All three pins are active low to indicate the status of the host system (Num Lock, Caps Lock and Scroll Lock) and are set by the system. After approximately a oneminute period of keyboard inactivity, LEDs are dimmed to conserve power. They are set to full brightness again upon a new keystroke. Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 4 www.semtech.com 8042 EMULATION CHANNEL The GreenCoderTM fully emulates a system’s keyboard port, available to a standard 84/85/101/102 external keyboard or other 8042-compatible device. Communication with a keyboard-compatible device is accomplished by clock and data lines via EKC and EKD pins, respectively. A third pin, EKC1 that connects to the Clock Line, interrupts the controller whenever the external device initiates a communication session. When power is first applied, the controller proceeds with the standard reset sequence with the external device. Data and commands initiated from the external device are buffered in the controller’s FIFO along with data from the scanned matrix, and then are presented to the system as if they were coming from a single source. Once they are acknowledged, commands and data from the system are then transmitted to the external device. SPECIAL HANDLING Connection of External Device The UR5HCFJL will detect the presence of an external device. If an external keyboard or other device was not connected during power-on and is connected at a later time, the encoder will proceed with the normal reset routine in order to properly initialize the external device. After communication has been established, the encoder will continue to check for the presence of the external device. While the external device is connected, the encoder will not enter the sleep mode. If the device is disconnected at a later time, the encoder will become aware of it. If a subsequent connection takes place, the controller will re-initiate a reset sequence. This unique feature allows the user to connect or disconnect an external device at any time without having to reset the system. Shift Status LEDs Shift Status LEDs (Num Lock, Caps Lock and Scroll Lock) indicate the status of the system and are controlled by commands sent from the system. Set/Reset Status Indicator Commands from the system will be executed both by the external keyboard and the scanned matrix. For example, if the user presses the Caps Lock Key on either keyboard, the Caps Lock LED will be affected on both keyboards. The LED status indicators are properly set after each new connection of an external keyboard. Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 5 www.semtech.com PC COMMUNICATION The UR5HCFJL implements all the standard functions of communication with a BIOScompatible PC/XT or AT/PS/2 host system. Two lines, KC and KD, provide bi-directional clock and data signals. In addition, the UR5HCFJL supports all commands from and to the system, as described in the IBM Technical Reference Manuals. The following table shows the commands that the system may send and their values in hex. Command Set/Reset Status Indicators Echo Invalid Command Select Alternate Scan Codes Invalid Command Read ID Set Typematic Rate/Delay Enable Default Disable Set Default Set All Keys Typematic Make/Break Make Typematic/Make/Break Set Key Type Typematic Make/Break Make Resend Hex Value ED EE EF F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 FA FB FC FD FE The following table shows the commands that the keyboard may send to the system. Command Key Detection Error/Overrun Keyboard ID BAT Completion Code BAT Failure Code Echo Acknowledge (Ack) Resend Key Detection Error/Overrun Hex Value 00* 83AB AA FC EE FA FE FF** *Code Sets 2 and 3 **Code Set 1 Table 3: Keyboard Commands to the System (AT/PS/2 protocol) When an external keyboard is connected, commands from the system will also be directed to the external keyboard. Presence or absence of an external device will not effect the normal operation of the GreenCoderTM. Reset FF Table 2: Keyboard Commands from the System (AT/PS/2 protocol) These commands are supported in the AT/PS/2 protocol and can be sent to the keyboard at any time. Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 6 www.semtech.com STATES OF OPERATION The GreenCoderTM has three states of operation, implemented to minimize the power consumption of the keyboard subsystem. The following diagram illustrates the three states of operation of the GreenCoderTM. SLEEP STATE STAND BY STATE USING THE GREENCODERTM FOR SYSTEM MANAGEMENT TASKS The GreenCoderTM provides an ideal complement to low-power chip sets targeted to the portable and mobile computing market. The GreenCoderTM can be used to handle several system management tasks for small, portable system designs, thus saving space and additional components for the System Designer. Such system management tasks include those listed below. However, since most of the system management tasks are application and hardware-dependent, detailed implementation information is outside the scope of this document. For application examples and sample schematics, contact Semtech Technical Support. System shut-down/wake-up signal ACTIVE STATE Figure 2: States of Operation of UR5HCFJL The GreenCoderTM can provide the system power management unit with a shut-down/wake-up signal which can be invoked either by a special keyboard combination or after a programmed period of user inactivity. Note: Self-Power ManagementTM is a feature protected under Semtech Corp. patent and copyright rights. Purchase of any version of the UR5HCFJL encoder conveys a license to utilize the Self-Power Management feature only through use of the UR5HCFJL in a PS/2-compatible keyboard subsystem. Most of the time, the GreenCoderTM is in the Sleep State. Power consumption in this state is approximately 2 µA at 5 Volts of operation. The GreenCoderTM enters the Active State only when there is an event to process, such as a keystroke, a command from the system, or data from the external PS/2-compatible device. The GreenCoderTM enters and stays in the Stand-By State if an external device is connected to the auxiliary port or if one or more LEDs are turned on. In the Stand-By State, the IC consumes approximately 600 µA at 5 Volts. Transition from one state to the other does not require any input from the system. Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 7 www.semtech.com KEY MAP FOR FKB7211 (UR5HCFJL-11) Columns (C0–C13) 6 7 8 ` (BkQt) Insert C B D T F7 7 Pad 7 R N F Y F8 8 Pad 8 G . (per) Pad . M Pad 0 J Pad 1 U Pad 4 F9 9 Pad 9 H 0 LCtrl* 1 Esc F1* 2 Tab Z CapLk A 3 F5 % 5 W 3 Fn 4 LAlt* 5 Space X V S 4 F6 6 E 9 Delete / Pad / , (com) K Pad 2 I Pad 5 F10 0 Pad * [ 10 ArrLft 11 ArrDn ArrUp 12 LShift RShift 13 ArrRt End PgDn PgUp BkSpc PrtScr Pause Home Rows (R0–R7) 1 F2 2 F4 F3 Q , (appos) Enter L Pad 3 O Pad 6 NumLk ; Pad + P Pad ScrLk - (dash) = ] \ Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 8 www.semtech.com KEYBOARD LAYOUTS (US ENGLISH) Depending on the status of the Num Lock and the FN Key, the UR5HCFJL implements one of four keyboard layouts.(Key numbering of a standard 101/102 keyboard is shown.) Layout A (Default layout) 110 Esc F1 112 113 F2 F3 114 F4 115 F5 116 F6 117 F7 118 F8 119 F9 120 121 F10 90 NmLk 125 ScLk 124 PrSc Brk 126 2 1 16 Tab 30 CpsLck 44 Shift 58 Ctrl 17 Q 31 A 46 Z FN 2 3 3 18 W 32 S 47 X 60 Alt 4 4 19 E 33 D 48 C 5 5 20 R 34 F 49 V 6 6 21 T 35 G 50 B 7 7 22 Y 36 H 51 N 8 8 23 U 37 J 52 M 9 9 24 I 38 K 53 10 0 25 0 39 L 11 12 13 26 P 40 = [ 27 15 BkSp 28 80 Home 85 PgUp 86 PgDn 81 End 89 ] 41 \ 29 ; 54 55 , 43 Enter 57 83 , 61 . , 1 / 75 Ins 76 Del Shift 79 84 SPACE Layout B (Num Lock is set) 110 Esc F1 112 113 F2 F3 114 F4 115 F5 116 F6 117 F7 118 F8 119 F9 120 121 F10 90 NmLk 125 ScLk 124 PrSc Brk 126 2 1 16 Tab 30 CpsLck 44 Shift 58 Ctrl 17 Q 31 A 46 Z FN 2 3 3 18 W 32 S 47 X 60 Alt 4 4 19 E 33 D 48 C 5 5 20 R 34 F 49 V 6 6 21 T 35 G 50 B 7 7 22 Y 36 H 51 N 91 8 92 4 93 1 99 0 96 101 9 102 6 98 2 53 100 12 13 * 105 106 = [ 27 15 BkSp 28 80 Home 85 PgUp 86 PgDn 81 End 89 97 5 ] 41 \ 29 103 3 + 95 , 43 Enter 57 83 , 61 . , 1 104 / 75 Ins 76 Del Shift 79 84 SPACE Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 9 www.semtech.com KEY MAP FOR FUJITSU FKB7316-001 (UR5HCFJL-16) Columns C0-C15 8 9 N H Y FN K6 J M K7 U RShift K0 P 0 0 1 Rows (R0–R7) 2 3 4 5 6 1 2 3 Space F5 BkSpc F9 \ Enter F10 4 B G T K5 F V K4 R 5 6 7 10 / RQ LBS Dash SCol 11 12 RAlt LAlt 13 ArrDn 14 ArrRt 15 ArrLft ArrUp Esc F4 Tab F3 PgUp LQ LCtrl A Z C F2 D CapLk F1 S X K2 W F6 RSB = K Comma K8 I LShift F7 F8 L Period PK O PrtScr ScrLk NumLk F11 F12 Pause End Del Ins Home PgDn K1 K3 Q E 7 KEYBOARD LAYOUT FOR FUJITSU FKB7316-001 (URHCFJL-16) F00 F01 F02 F03 F04 F05 F06 F07 F08 F09 F10 F11 F12 F13 F14 F15 F16 Esc F1 E01 F2 F3 F4 F5 F6 E05 F7 E06 F8 F9 F10 F11 F12 Num Lock E11 Pause Sys Rq E12 Scroll Lock E13 Pause Break E14 ! 1 D00 @ 2 D01 E02 # 3 D02 E03 $ 4 D03 E04 % 5 D04 ^ 6 D05 & 7 D06 E07 7 * 8 D07 E08 8 ( 9 D08 E09 9 ) 0 D09 E10 * P C09 @ 2 D10 @ 2 D11 BS } ] D12 D13 Home Tab C00 Q W C01 C02 E C03 R C04 T C05 Y C06 U 4 C07 I 5 C08 O 6 : ; C10 { [ D14 : / C13 PgUp Caps Lock B00 A S B01 D B02 F B03 G B04 H B05 J B06 1 K B07 2 L B08 3 + ? / A10 " ? B10 C11 C14 Enter B12 B13 PgDn < Shift A00 Z A01 X A02 C V B N M 0 A06 , > B09 B14 .. Ins / 0 Shift A11 A12 A13 End ~ A03 A09 A14 FN Ctrl Alt Space Alt Del Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 10 www.semtech.com KEY MAP FOR FUJITSU FKB1406 (UR5HFJL-06) Columns (C0–C13) 6 7 8 0 0 LAlt* 1 1 2 3 4 5 9 10 11 12 13 ` (BkQt) \ LShift LCtrl* FN Esc Del Q CapLk S C 3 F3 1 F1 2 F2 T E 9/Pad 9 F9 Y R 0/ Pad * - (dash) = F10 NmLk Bk U/Pad 4 I/Pad5 Enter [ Pause , (appos) SysReq //Pad / . (per) BkSpc RShift PgDn ] ScrLk PgUp Home Space Rows (R0–R7) 2 TAB 3 4 5 6 7 * In FN Case: LCtrl = RCtrl LAlt = RAlt Refer to Page 4 for a description of FN key specifics. W Z A X D V 4 F4 F B 5 F5 O/Pad 6 P/Pad Ins K/Pad 2 L/Pad 3 ;/Pad + PrtScr G H J/Pad 1 N 6 F6 M/Pad 0 , (com) 7/Pad 7 F7 8/Pad 8 F8 Prog End KEY LAYOUT FOR FUJITSU FKB1406 (UR5HFJL-06) Esc ! @ # $ % ^ & 7 * 8 ( 9 ) 1 F2 2 F2 3 F3 4 F4 5 F5 6 F6 7 F7 8 F8 9 F9 0 F10 * _ - Num Lk + = Bk Q Del Cap Lock Shift W A Z ~ ` E D R F V T G Y H U4 J 1 I 5 O6 P _ { [ Pause + } ] Scr Lk Prog Ins S X : ; K2 L3 < , > : ; " Prt Scr Fn C B N M0 . . ' / Sys Req Enter ? / Shift Ctrl Alt Home PgUp PgDn End Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 11 www.semtech.com KEY MAP FOR THE GREENCODERTM UR5HCFJL-7654 Rows (R0-R7) 0 0 1 2 3 4 5 6 7 Columns (C0-C15) 8 9 F1 8/N8 F6 F9 F10 F12 F2 9/N9 3 F5 F11 0/N* F3 I/N5 4 6 F8 O/N6 E , F V N ./N. Tab CapsLk 1 S Z RAlt D Space C B H W K/N2 R G Y 2 U/N4 5 T 7/N7 L/N3 LWin A Q Esc LAlt X M/N0 F4 F7 J/N1 NumLk/ FScrlLk ` Ins/ FPrtScr 1 2 3 4 5 6 7 FN 10 11 Pause BkSp = ] \ ‘ WinApp Enter [ DnArr/ UpArr/ FPgDn FPgUp 12 13 RArr/ FEnd RWin LArr/ Del/ / / N/ FHome FSysReq LCtrl LShft RShft ;/N+ P/N- 14 15 RCtrl Note1: The letter N in italics, followed by a number or symbol, indicates that key in Num Case. Note2: The letter F in italics, followed by a key function, indicates that key in Function Case. Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 12 www.semtech.com KEYBOARD LAYOUT FOR THE FUJITSU FKB7654 Esc F1 F2 F3 F4 F5 F6 F7 F8 F9 F1 0 F1 1 F1 2 SL NL Pau Brk Ins Prt De l Srq ! 1 tab cap lock shi ft ctrl Q @ 2 W A Z # 3 E S X $ 4 R D C % 5 T F V ^ 6 Y G B & 7 7 * 8 U 4 8 ( 9 I 5 9 ) 0 O 6 _ P 3 + = { [ } ] ~ ` bk sp en t er H N J 1 K M 0 2 L < , alt : ; > . . + " ' ? / / | \ sh i f t fn alt sZ c e pa ctrl pgup pgup pgup pgup Copyright Semtech DOC5-FJL-DS-106 13 www.semtech.com IMPLEMENTATION NOTES FOR THE UR5HCFJL The following notes pertain to the suggested schematics found on the next pages. The Built-in Oscillator on the UR5HCFJL requires the attachment of the 4.00 MHz Ceramic Resonators with built-in Load Capacitors.. You can use either an AVX, part number PBRC-1.00 BR; or a Murata part number CSTCC2.00MG ceramic resonator. It may also be possible to operate with the 2.00 MHz Crystal, albeit with reduced performance. Due to their high Q, the Crystal oscillator circuits start-up slowly. Since the GreenCoderTM constantly switches the clock on and off, it is important that the Ceramic Resonator is used (it starts up much quicker than the Crystal). Resonators are also less expensive than Crystals. Also, if Crystal is attached, two Load Capacitors (33pF to 47pF) should be added, a Capacitor between each side of the Crystal and ground. In both cases, using Ceramic Resonator with built-in Load Capacitors, or Crystal with external Load Capacitors, a feedback Resistor of 1 Meg should be connected between OSCin and OSCout. Troubleshoot the circuit by looking at the Output pin of the Oscillator. If the voltage it half-way between Supply and Ground (while the Oscillator should be running) --- the problem is with the Load Caps / Crystal. If the voltage it all the way at Supply or Ground (while the Oscillator should be running) --there are shorts on the PCB. NOTE: when the Oscillator is intentionally turned OFF, the voltage on the Output pin of the Oscillator is High (at the Supply rail). Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 14 www.semtech.com Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 U2 VCC Voltage Detector 3 VOUT VIN 2 D1 D2 D3 VSS VCC 1 R3 1.5K R6 10K 33 SL 44 NL U1 7 CL R7 10K R8 10K R9 10K R4 R5 1.5K 1.5K 38 VCC 41 RESET 6 EKD 5 EKC C1 10uF C2 .1uF 4 KC 3 KD 35 EKC1 VCC SUGGESTED INTERFACING FOR THE GREENCODERTM UR5HCFJL-FB 15 UR5HCFJL-FB C15 C14 C13 C12 C11 C10 C9 C8 C7 C6 C5 C4 C3 C2 C1 C0 18 19 20 21 23 24 25 26 15 14 13 12 11 10 9 8 C3 47pF C4 47pF 43 VX C5 47pF C6 47pF VCC R7 R6 R5 R4 R3 R2 R1 R0 VSS OSCO OSCI OPT 34 1 32 31 30 29 28 27 DRV 42 2 3 2 17 37 36 R1 1M 1 R2 150K Y1 2.00MHz 2 3 D4A BAV54A 1 1 D4B BAV54A VCC RN1 15K J4 Shield 1 2 3 4 5 6 CON6 J3 1 2 3 4 5 CON5 VCC J1 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CON16 J2 8 7 6 5 4 3 2 1 CON8 10 4 5 6 7 8 9 www.semtech.com MECHANICALS FOR THE UR5HCFJL-P 40 21 B L 1 20 A C J N M F K Seating Plane Notes: 1. Positional tolerance of leads (D) shall be within 0.25 mm (0.010) at maximum material condition, in relation to the seating plane and each other. 2. Diminsion L is to the center of the leads when the leads are formed parallel. 3. Dimension B does not include mold flash. H G D MILLIMETERS INCHES DIM A B C D F G H J K L M N MIN MAX 51.69 52.45 13.72 14.22 3.94 5.08 0.36 0.56 1.02 1.52 2.54 BSC 1.65 2.16 0.20 0.38 2.92 3.43 15.24 BSC 00 15 0 0.51 1.02 MIN MAX 2.035 2.065 0.540 0.560 0.155 0.200 0.014 0.022 0.040 0.060 0.100 BSC 0.065 0.085 0.008 0.015 0.015 0.135 0.600 BSC 00 15 0 0.020 0.040 Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 16 www.semtech.com MECHANICALS FOR THE UR5HCFJL-FN N Y BRK D L 44 Leads PLCC M B 0.18 (0.007) M T N S -P S L S -M S U W Z1 D 0.18 (0.007) M T N S -P S L S -M S Note 1 (Note 1) 44 1 P V A Z 0.18 (0.007) M T L S -M S N S -P S X View D-D G1 0.25 (0.010) M T N S -P S L S -M S R 0.18 (0.007) M T L S -M S N S -P S H C + + 0.18 (0.007) M T L S -M S N S -P S 0.18 (0.007) M T N S -P S L S -M S E G K1 K F 44 (Note 1) 0.18 (0.007) 0.18 (0.007) M M T L S -M S N S -P S T N S -P S L S -M S J G1 0.25 (0.010) M D etail S 0.010 (0.004) T Detail S Seating Plane MILLIMETERS INCHES T L S -M S N S -P S Notes: 1. Due to space limitation, the chip is represented by a general (smaller) case outline drawing rather than showing all 44 leads. 2. Datums L, M, N, and P determine where the top of the lead shoulder exits plastic body at mold parting line 3. DIM G1, true position to be measured at Datum T, Seating Plane 4. DIM R and U do not include mold protusion. Allowable mold protusion is 0.25 (0.010) per side. 5. Dimensioning and tolerancing per Ansi Y14.5M, 1982 6. Controlling dimension: Inch DIM A B C E F G H J K R U V W X Y Z G1 K1 Z1 MIN MAX 17.40 17.65 17.40 17.65 4.20 4.57 2.29 2.79 0.33 0.48 1.27 BSC 0.66 0.81 0.51 0.64 16.51 16.66 16.51 16.66 1.07 1.21 1.07 1.21 1.07 1.42 - 0.50 20 10 0 15.50 16.00 1.02 20 10 0 MIN MAX 0.685 0.695 0.685 0.695 0.165 0.180 0.090 0.110 0.013 0.019 0.050 BSC 0.026 0.032 0.020 0.025 0.650 0.656 0.650 0.656 0.042 0.048 0.042 0.048 0.042 0.056 - 0.020 20 10 0 0.610 0.630 0.040 2 10 0 Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 17 www.semtech.com MECHANICALS FOR THE UR5HCFJL-FB L 33 34 23 DS B 22 DS A,B,D B 0.20 (0.008) M C A-B S 0.05 (0.002) A-B A L B V 0.20 (0.008) M H A-B S Detail A Detail A 44 1 11 12 D A 0.20 (0.008) M C A-B S 0.05 (0.002) A-B DS Notes 1. Dimensioning and tolerancing per Ansi Y14.5-M, 1982 2. Controlling dimension: Millimeter 3. Datum Plane "H" is located at the bottom of the lead and is coincident with the lead where the lead exits the plastic body at the bottom of the parting line. 4. Datums -A-, -B-, and -D- to be determined at Datum Plane -H-. 5. Dimensions S and V to be determined at seating plane -C-. 6. Dimensions A and B do not include Mold protusion. Allowable protusion is 0.25 (0.010) per side. Dimensions A and B do include mold mismatch and are determined at Datum Plane -H-. 7. Dimension D does not include Danbar protrusion. Allowable Danbar protrusion is 0.08 (0.003) total in excess of the D dimension at Maximum Material Condition. Danbar cannot be located on the lower radius or the foot. MILLIMETERS INCHES F S 0.20 (0.008) M H A-B S DS Base Metal J N M T Datum Plane D 0.20 (0.008) M C A-B S DS R Section B-B DIM A B C D E F G H J K L M N Q R S T U V W X H W X M Detail C K Q Detail C C C Seating Plane E H Datum Plane 0.01 (0.004) G H M MIN MAX 9.90 10.10 9.90 10.10 2.10 2.45 0.30 0.45 2.00 2.10 0.30 0.40 0.80 BSC - 0.25 0.13 0.23 0.65 0.95 8.00 REF 50 10 0 0.13 0.17 00 70 0.13 .30 12.95 13.45 0.13 00 12.95 13.45 0.40 1.6 REF MIN MAX 0.390 0.398 0.390 0.398 0.083 0.096 0.012 0.018 0.079 0.083 0.012 0.016 0.031 BSC - 0.010 0.005 0.009 0.026 0.037 0.315 REF 50 10 0 0.005 0.007 00 70 0.005 0.012 0.510 0.530 0.005 00 0.510 0.530 0.016 0.063 REF Copyright Semtech, 1997-2001 DOC5-FJL-DS-106 18 www.semtech.com ELECTRICAL SPECIFICATIONS Absolute Maximum Ratings Ratings Supply Voltage Input Voltage Current Drain per Pin (not including Vss or Vdd) Operating Temperature UR5HCFJL-XX Storage Temperature Range Thermal Characteristics Characteristic Thermal Resistance Plastic DIP Plastic PLCC Symbol Vdd Vin I TA Tstg Value -0.3 to +7.0 Vss -0.3 to Vdd +0.3 25 T low to T high -40 to +85 -65 to +150 Unit V V mA °C °C Symbol Tja Value 60 70 Unit °C per W DC Electrical Characteristics (Vdd=5.0 Vdc +/-10%, Vss=0 Vdc, Temperature Characteristic Symbol Min Output Voltage (I load
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