®
X5648, X5649
(Replaces X25648, X25649)
Data Sheet March 17, 2005 FN8136.0
CPU Supervisor with 64Kbit SPI EEPROM
FEATURES • Low VCC detection and reset assertion —Five standard reset threshold voltages —Re-program low VCC reset threshold voltage using special programming sequence —Reset signal valid to VCC = 1V • Long battery life with low power consumption — 3.3V, IOH = –1.0mA
V
CAPACITANCE TA = +25°C, f = 1MHz, VCC = 5V Symbol
COUT CIN
(2) (2)
Test
Output capacitance (SO, RESET/RESET) Input capacitance (SCK, SI, CS, WP)
Max.
8 6
Unit
pF pF
Conditions
VOUT = 0V VIN = 0V
Notes: (1) VIL min. and VIH max. are for reference only and are not tested. (2) This parameter is periodically sampled and not 100% tested.
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EQUIVALENT A.C. LOAD CIRCUIT AT 5V VCC
5V 2.06kΩ Output 3.03kΩ 100pF RESET/RESET 30pF 5V 4.6kΩ
A.C. TEST CONDITIONS
Input pulse levels Input rise and fall times Input and output timing level VCC x 0.1 to VCC x 0.9 10ns VCC x 0.5
A.C. CHARACTERISTICS (Over recommended operating conditions, unless otherwise specified) Serial Input Timing 2.7-5.5V Symbol
fSCK tCYC tLEAD tLAG tWH tWL tSU tH tRI(3) tFI(3) tCS tWC
(4)
Parameter
Clock frequency Cycle time CS lead time CS lag time Clock HIGH time Clock LOW time Data setup time Data hold time Input rise time Input fall time CS deselect time Write cycle time
Min.
0 500 250 250 200 250 50 50
Max.
2
Unit
MHz ns ns ns ns ns ns ns
100 100 500 10
ns ns ns ms
Serial Input Timing
tCS CS tLEAD SCK tSU SI MSB IN tH tRI tFI LSB IN tLAG
SO
High Impedance
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Serial Output Timing 2.7-5.5V Symbol
fSCK tDIS tV tHO tRO(3) tFO(3) Clock frequency Output disable time Output valid from clock low Output hold time Output rise time Output fall time 0 100 100
Parameter
Min.
0
Max.
2 250 250
Unit
MHz ns ns ns ns ns
Notes: (3) This parameter is periodically sampled and not 100% tested. (4) tWC is the time from the rising edge of CS after a valid write sequence has been sent to the end of the self-timed internal nonvolatile write cycle.
Serial Output Timing
CS tCYC SCK tV SO MSB Out MSB–1 Out tHO tWL LSB Out tDIS tWH tLAG
SI
ADDR LSB IN
Power-Up and Power-Down Timing
VTRIP VCC 0 Volts tR RESET (X5648) tPURST tPURST tF tRPD VTRIP
RESET (X5649)
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RESET Output Timing Symbol
VTRIP
Parameter
Reset trip point voltage, X5648-4.5A, X5648-4.5A Reset trip point voltage, X5648, X5649 Reset trip point voltage, X5648-2.7A, X5649-2.7A Reset trip point voltage, X5648-2.7, X5649-2.7 VTRIP hysteresis (HIGH to LOW vs. LOW to HIGH VTRIP voltage) Power-up reset time out VCC detect to reset/output VCC fall time VCC rise time Reset valid VCC
Min.
4.5 4.25 2.85 2.55 100 100 100 1
Typ.
4.63 4.38 2.93 2.63 20 200
Max.
4.75 4.5 3.0 2.7 280 500
Unit
V
VTH tPURST tRPD
(5)
mV ms ns µs µs V
tF(5) tR(5) VRVALID
Note:
(5) This parameter is periodically sampled and not 100% tested.
VTRIP Set Conditions
tTHD VCC VTRIP tTSU tVPS tP tVPH tRP
CS
tVPS VP
tVPH
tVPO
SCK VP SI tVPO
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VTRIP Reset Conditions
VCC* tRP tVPS tP tVP1
CS
tVPS
tVPH
tVPO
SCK
VCC
VP SI
tVPO
*VCC > Programmed VTRIP
VTRIP Programming Specifications VCC = 1.7-5.5V; Temperature = 0°C to 70°C Parameter
tVPS tVPH tP tTSU tTHD tWC tRP tVPO VP VTRAN Vta1 Vta2 Vtr Vtv
Description
SCK VTRIP program voltage setup time SCK VTRIP program voltage hold time VTRIP program pulse width VTRIP level setup time VTRIP level hold (stable) time VTRIP write cycle time VTRIP program cycle recovery period (between successive programming cycles) SCK VTRIP program voltage off time before next cycle Programming voltage VTRIP programed voltage range Initial VTRIP program voltage accuracy (VCC applied - VTRIP) (programmed at 25°C) Subsequent VTRIP program voltage accuracy [(VCC applied - Vta1) - VTRIP) (programmed at 25°C) VTRIP program voltage repeatability (successive program operations) (programmed at 25°C) VTRIP program variation after programming (0 - 75°C). (programmed at 25°C.)
Min.
1 1 1 10 10
Max.
Unit
µs µs µs µs ms
10 10 0 15 1.7 -0.1 -25 -25 -25 18 5.0 +0.4 +25 +25 +25
ms ms ms V V V mV mV mV
VTRIP programming parameters are periodically sampled and are not 100% tested.
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TYPICAL PERFORMANCE
VCC Supply Current vs. Temperature (ISB)
18 16 14 Time (ms) 12 Isb (µA) 10 8 6 4 2 0 -40 25 Temp (°C) 90 Watchdog Timer Off (VCC = 3V, 5V) Watchdog Timer On (VCC = 5V) Watchdog Timer On (VCC = 5V)
tPURST vs. Temperature
205 200 195 190 185 180 175 170 165
160 -40
25 Degrees °C
90
VTRIP vs. Temperature (programmed at 25°C)
5.025 5.000 4.975 3.525 Voltage 3.500 3.475 2.525 2.500 2.475 0 25 Temperature VTRIP = 2.5V VTRIP = 3.5V VTRIP = 5V
85
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PACKAGING INFORMATION 8-Lead Plastic Dual In-Line Package Type P
0.430 (10.92) 0.360 (9.14)
0.260 (6.60) 0.240 (6.10) Pin 1 Index Pin 1 0.300 (7.62) Ref. 0.060 (1.52) 0.020 (0.51)
Half Shoulder Width On All End Pins Optional Seating Plane 0.150 (3.81) 0.125 (3.18)
0.145 (3.68) 0.128 (3.25) 0.025 (0.64) 0.015 (0.38) 0.065 (1.65) 0.045 (1.14) 0.020 (0.51) 0.016 (0.41)
0.110 (2.79) 0.090 (2.29)
.073 (1.84) Max.
0.325 (8.25) 0.300 (7.62)
Typ. 0.010 (0.25)
0° 15°
NOTE: 1. ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS) 2. PACKAGE DIMENSIONS EXCLUDE MOLDING FLASH
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PACKAGING INFORMATION
14-Lead Plastic, SOIC, Package Code S14
0.150 (3.80) 0.228 (5.80) 0.158 (4.00) 0.244 (6.20) Pin 1 Index Pin 1
0.014 (0.35) 0.020 (0.51) 0.336 (8.55) 0.345 (8.75) (4X) 7°
0.053 (1.35) 0.069 (1.75) 0.004 (0.10) 0.010 (0.25)
0.050 (1.27)
0.050"T ypical 0.010 (0.25) 0.020 (0.50) X 45° 0.050"Typical 0° - 8° 0.0075 (0.19) 0.010 (0.25) 0.016 (0.410) 0.037 (0.937) 0.030" Typical 14 Places 0.250"
FOOTPRINT
NOTE: ALL DIMENSIONS IN INCHES (IN PARENTHESES IN MILLIMETERS)
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Ordering Information VCC Range
4.5-5.5V
VTRIP Range
4.5.4.75
Package
8 pin PDIP 14L SOIC
Operating Temperature Range
0-70°C 0-70°C -40-85°C 0-70°C 0-70°C -40-85°C 0-70°C 0-70°C
Part Number RESET (Active LOW)
X5648P-4.5A X5648S14-4.5A X5648S14I-4.5A X5648P X5648S14 X5648S14I X5648S14-2.7A X5648S14-2.7
Part Number RESET (Active HIGH)
X5649P-4.5A X5649S14-4.5A X5649S14I-4.5A X5649P X5649S14 X5649S14I X5649S14-2.7A X5649S14-2.7
4.5-5.5V
4.25.4.5
8 pin PDIP 14L SOIC
2.7-5.5V 2.7-5.5V
2.85-3.0 2.55-2.7
14L SOIC 14L SOIC
Part Mark Information X5648/49 W X Blank = 14-Lead SOIC P = 8 Pin DIP Blank = 5V ±10%, 0°C to +70°C, VTRIP = 4.25-4.5 AL = 5V±10%, 0°C to +70°C, VTRIP = 4.5-4.75 I = 5V ±10%, -40°C to +85°C, VTRIP = 4.25-4.5 AM = 5V ±10%, -40°C to +85°C, VTRIP = 4.5-4.75 F = 2.7V to 5.5V, 0°C to +70°C, VTRIP = 2.55-2.7 AN = 2.7V to 5.5V, 0°C to +70°C, VTRIP = 2.85-3.0 G = 2.7V to 5.5V, -40°C to +85°C, VTRIP = 2.55-2.7 AP = 2.7V to 5.5V, -40°C to +85°C, VTRIP = 2.85-3.0
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FN8136.0 March 17, 2005