NM93C46M8

NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) February 2000 NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRE™ Synchronous Bus) General Description NM93C46 is a 1024-bit CMOS non-volatile EEPROM organized as 64 x 16-bit array. This device features MICROWIRE interface which is a 4-wire serial bus with chipselect (CS), clock (SK), data input (DI) and data output (DO) signals. This interface is compatible to many of standard Microcontrollers and Microprocessors. There are 7 instructions implemented on the NM93C46 for various Read, Write, Erase, and Write Enable/Disable operations. This device is fabricated using Fairchild Semiconductor floating-gate CMOS process for high reliability, high endurance and low power consumption. “LZ” and “L” versions of NM93C46 offer very low standby current making them suitable for low power applications. This device is offered in both SO and TSSOP packages for small space considerations. Features I Wide VCC 2.7V - 5.5V I Typical active current of 200µA 10µA standby current typical 1µA standby current typical (L) 0.1µA standby current typical (LZ) I No Erase instruction required before Write instruction I Self timed write cycle I Device status during programming cycles I 40 year data retention I Endurance: 1,000,000 data changes I Packages available: 8-pin SO, 8-pin DIP, 8-pin TSSOP Functional Diagram CS SK DI INSTRUCTION REGISTER VCC INSTRUCTION DECODER CONTROL LOGIC AND CLOCK GENERATORS ADDRESS REGISTER HIGH VOLTAGE GENERATOR AND PROGRAM TIMER DECODER EEPROM ARRAY 16 READ/WRITE AMPS 16 VSS DATA IN/OUT REGISTER 16 BITS DO DATA OUT BUFFER © 2000 Fairchild Semiconductor International NM93C46 Rev. E 1 www.fairchildsemi.com NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) Connection Diagram Dual-In-Line Package (N) 8–Pin SO (M8) and 8–Pin TSSOP (MT8) CS SK DI DO 1 2 3 4 8 VCC NC NC GND NC VCC CS SK 1 2 3 4 8 NC GND DO DI Normal 7 Pinout 6 5 Rotated Pinout 7 6 5 Top View Package Number N08E, M08A and MTC08 Pin Names CS SK DI DO GND NC VCC Chip Select Serial Data Clock Serial Data Input Serial Data Output Ground No Connect Power Supply NOTE: Pins designated as "NC" are typically unbonded pins. However some of them are bonded for special testing purposes. Hence if a signal is applied to these pins, care should be taken that the voltage applied on these pins does not exceed the VCC applied to the device. This will ensure proper operation. Ordering Information NM 93 C XX T LZ E XXX Package N M8 MT8 None V E Blank L LZ Blank T Density 46 C CS Interface 93 Letter Description 8-pin DIP 8-pin SO 8-pin TSSOP 0 to 70°C -40 to +125°C -40 to +85°C 4.5V to 5.5V 2.7V to 5.5V 2.7V to 5.5V and User defined ;;;;;;;;;;;;;; ;;;;;;;;;;;;;; ;;; ;;; 0 D15 D1 D0 WRITE ENABLE CYCLE (WEN) tCS CS SK DI 1 Star t Bit 0 0 A5 A4 Address Bits(6) A1 A0 Opcode Bits(2) DO High - Z 93C46: A d d r e s s b i t s p a t t e r n - > 1 - 1 - x - x - x - x ; ( x - > D o n ' t C a r e, c a n b e 0 o r 1 ) 8 NM93C46 Rev. E www.fairchildsemi.com NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) Timing Diagrams (Continued) WRITE DISABLE CYCLE (WDS) tCS CS SK DI 1 Star t Bit 0 0 A5 A4 Address Bits(6) A1 A0 Opcode Bits(2) DO High - Z 93C46: A d d r e s s b i t s p a t t e r n - > 0 - 0 - x - x - x - x ; ( x - > D o n ' t C a r e, c a n b e 0 o r 1 ) WRITE CYCLE (WRITE) tCS CS SK DI 1 Star t Bit 0 1 A5 A4 Address Bits(6) A1 A0 D15 D14 Data Bits(16) D1 D0 tWP Ready Busy Opcode Bits(2) DO 93C46: Address bits patter n -> User defined Data bits patter n -> User defined High - Z WRITE ALL CYCLE (WRALL) tCS CS SK DI 1 Star t Bit 0 0 A5 A4 Address Bits(6) A1 A0 D15 D14 Data Bits(16) D1 D0 tWP Ready Busy Opcode Bits(2) DO High - Z 93C46: A d d r e s s b i t s p a t t e r n - > 0 - 1 - x - x - x - x ; ( x - > D o n ' t C a r e, c a n b e 0 o r 1 ) Data bits pattern -> User defined 9 NM93C46 Rev. E www.fairchildsemi.com NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) Timing Diagrams (Continued) ERASE CYCLE (ERASE) tCS CS SK DI 1 Star t Bit 1 1 A5 A4 Address Bits(6) A1 A0 tWP Ready Busy Opcode Bits(2) DO 93C46: Address bits pattern -> User defined High - Z ERASE ALL CYCLE (ERAL) tCS CS SK DI 1 Star t Bit 1 1 A5 A4 Address Bits(6) A1 A0 tWP Ready Busy O pcode Bits(2) DO High - Z 93C46: Address bits patter n -> 1-0-x-x-x-x ; (x -> Don't Care, can be 0 or 1) CLEARING READY STATUS CS SK DI Star t Bit DO High - Z Busy Ready High - Z Note: This Star t bit can also be par t of a next instr uction. Hence the cycle can be continued (instead of getting ter minated, as shown) as if a new instr uction is being issued. 10 NM93C46 Rev. E www.fairchildsemi.com NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) Physical Dimensions inches (millimeters) unless otherwise noted 0.189 - 0.197 (4.800 - 5.004) 8765 0.228 - 0.244 (5.791 - 6.198) 1234 Lead #1 IDENT 0.150 - 0.157 (3.810 - 3.988) 8° Max, Typ. All leads 0.04 (0.102) All lead tips 0.010 - 0.020 x 45° (0.254 - 0.508) 0.053 - 0.069 (1.346 - 1.753) 0.004 - 0.010 (0.102 - 0.254) Seating Plane 0.0075 - 0.0098 (0.190 - 0.249) Typ. All Leads 0.016 - 0.050 (0.406 - 1.270) Typ. All Leads 0.014 (0.356) 0.050 (1.270) Typ 0.014 - 0.020 Typ. (0.356 - 0.508) Molded Package, Small Outline, 0.15 Wide, 8-Lead (M8) Package Number M08A 11 NM93C46 Rev. E www.fairchildsemi.com NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) Physical Dimensions inches (millimeters) unless otherwise noted 0.114 - 0.122 (2.90 - 3.10) 8 5 (4.16) Typ (7.72) Typ 0.169 - 0.177 (4.30 - 4.50) (1.78) Typ (0.42) Typ (0.65) Typ 0.246 - 0.256 (6.25 - 6.5) 0.123 - 0.128 (3.13 - 3.30) 1 4 Pin #1 IDENT Land pattern recommendation 0.0433 Max (1.1) 0.002 - 0.006 (0.05 - 0.15) 0.0256 (0.65) Typ. See detail A 0.0035 - 0.0079 0.0075 - 0.0098 (0.19 - 0.30) 0°-8° Gage plane DETAIL A Typ. Scale: 40X 0.020 - 0.028 (0.50 - 0.70) Seating plane 0.0075 - 0.0098 (0.19 - 0.25) Notes: Unless otherwise specified 1. Reference JEDEC registration MO153. Variation AA. Dated 7/93 8-Pin Molded TSSOP, JEDEC (MT8) Package Number MTC08 12 NM93C46 Rev. E www.fairchildsemi.com NM93C46 1024-Bit Serial CMOS EEPROM (MICROWIRETM Synchronous Bus) Physical Dimensions inches (millimeters) unless otherwise noted 0.373 - 0.400 (9.474 - 10.16) 0.090 (2.286) 0.092 DIA (2.337) Pin #1 IDENT Option 1 0.032 ± 0.005 8 7 8 + 7 6 5 0.250 - 0.005 (6.35 ± 0.127) (0.813 ± 0.127) RAD Pin #1 IDENT 1 1 2 3 4 0.039 (0.991) 0.130 ± 0.005 (3.302 ± 0.127) Option 2 0.145 - 0.200 (3.683 - 5.080) 0.280 MIN (7.112) 0.300 - 0.320 (7.62 - 8.128) 0.040 Typ. (1.016) 0.030 MAX (0.762) 20° ± 1° 95° ± 5° 0.009 - 0.015 (0.229 - 0.381) +0.040 0.325 -0.015 +1.016 8.255 -0.381 0.125 (3.175) DIA NOM 0.065 (1.651) 0.125 - 0.140 (3.175 - 3.556) 90° ± 4° Typ 0.018 ± 0.003 (0.457 ± 0.076) 0.100 ± 0.010 (2.540 ± 0.254) 0.060 (1.524) 0.020 (0.508) Min 0.045 ± 0.015 (1.143 ± 0.381) 0.050 (1.270) Molded Dual-In-Line Package (N) Package Number N08E Life Support Policy Fairchild's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of Fairchild Semiconductor Corporation. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. Fairchild Semiconductor Americas Customer Response Center Tel. 1-888-522-5372 Fairchild Semiconductor Europe Fax: +44 (0) 1793-856858 Deutsch Tel: +49 (0) 8141-6102-0 English Tel: +44 (0) 1793-856856 Français Tel: +33 (0) 1-6930-3696 Italiano Tel: +39 (0) 2-249111-1 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Fairchild Semiconductor Hong Kong 8/F, Room 808, Empire Centre 68 Mody Road, Tsimshatsui East Kowloon. Hong Kong Tel; +852-2722-8338 Fax: +852-2722-8383 Fairchild Semiconductor Japan Ltd. 4F, Natsume Bldg. 2-18-6, Yushima, Bunkyo-ku Tokyo, 113-0034 Japan Tel: 81-3-3818-8840 Fax: 81-3-3818-8841 Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. 13 NM93C46 Rev. E www.fairchildsemi.com