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Details, datasheet, quote on part number:S-29194A-FJ
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Datasheet text preview:
Rev.1.2_20
CMOS SERIAL E2PROM
S-29X94A Series
The S-29X94A Series is high speed, low power 1K/2K/4K-bit serial E2PROM with a wide operating voltage range. They are organized as 64-word × 16-bit, 128-word × 16-bit and 256-word × 16-bit, respectively. Each is capable of sequential read, where addresses are automatically incremented in 16-bit blocks. The S-29X94A Series is capable of protecting the memory, 50 % of which can be protected starting from address 00. Interface is structured so that this IC can be directly connected to the CPU with serial ports. 8-bit instructions make it easy to prepare your own software.
Features
· Low power consumption Standby : 1.0 µA Max. (VCC=6.5 V) 0.4 mA Max. (VCC=2.5 V) · Wide operating voltage range Write Read :2.5 to 6.5 V :1.8 to 6.5 V Operating : 0.8 mA Max. (VCC=5.5 V) · Can be easily connected to the serial port · CS Active "L" · Endurance : 105 cycles/word · Data retention : 10 years · S-29194A : 1 Kbits · S-29294A : 2 Kbits · S-29394A : 4 Kbits
· Sequential read capable · Memory Protection
Package
8-Pin DIP 8-Pin SOP (PKG drawing code : DP008-A) (PKG drawing code : FJ008-A)
Pin Assignment
8-Pin DIP Top view CS SK DI DO 1 2 3 4 8 7 6 5 S-29194ADPA S-29294ADPA S-29394ADPA VCC NC PROTECT GND NC VCC CS SK 8-Pin SOP1 Top view 1 2 3 4 8 7 6 5 PROTECT GND DO DI
S-29194AFJA S-29294AFJA S-29394AFJA
Figure 1
Seiko Instruments Inc.
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CMOS SERIAL E2PROM S-29X94A Series
Pin Functions
Table 1
Name
CS SK DI DO GND PROTECT Pin Number DIP 1 2 3 4 5 6 SOP1 3 4 5 6 7 8 Chip select input Serial clock input Serial data input Serial data output Ground Memory Protection Control Input Connected to GND or Open : Protection Valid Connected to Vcc : Protection Invalid No Connection Power supply Function
NC VCC
7 8
1 2
Block Diagram
Memory array Write Protection Circuit Bank 1* Bank 2 Address decoder VCC GND
PROTECT
Data register DI Mode decode logic
Output buffer
DO
CS
SK
Clock generator *50 % of the memory can be protected starting from address 00.
Figure 2
Instruction Set
Table 2
Instruction READ (Read data) PROGRAM (Program data) WRAL (Write all) ERAL (Erase all) PEN PDS (Program enable) (Program disable) Start Bit 1 1 1 1 1 1 Ope code 1000xxx x100xxx 0001xxx 0010xxx 0011xxx 0000xxx S-29194A xx A5toA0 xx A5toA0 xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx Address S-29294A x A6toA0 x A6toA0 xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx S-29394A A7toA0 A7toA0 xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx D15 to D0 Output* D15 to D0 Input D15 to D0 Input -- -- -- Data
x : Doesn't matter. * : When 16-bit data of the specified address is output, the data of the next address is output.
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Seiko Instruments Inc.
CMOS SERIAL E2PROM S-29X94A Series
Absolute Maximum Ratings
Table 3
Parameter Power supply voltage Input voltage Output voltage Storage temperature under bias Storage temperature Symbol VCC VIN VOUT Tbias Tstg Ratings -0.3 to +7.0 -0.3 to VCC+0.3 -0.3 to VCC -50 to +95 -65 to +150 Unit V V V °C °C
Caution The absolute maximum ratings are rated values exceeding which the product could suffer physical damage. These values must therefore not be exceeded under any conditions. Recommended Operating Conditions
Table 4
Parameter Symbol Conditions Read Operation Power supply voltage VCC Write Enable/Disable Write Operation VCC=5.5 to 6.5 V High level input voltage VIH VCC=4.5 to 5.5 V VCC=2.7 to 4.5 V VCC=1.8 to 2.7 V VCC=5.5 to 6.5 V Low level input voltage VIL VCC=4.5 to 5.5 V VCC=2.7 to 4.5 V VCC=1.8 to 2.7 V Operating temperature Topr -- Min. 1.8 2.5 0.8×Vcc 2.0 0.8×Vcc 0.8×Vcc 0.0 0.0 0.0 0.0 -40 Typ. -- -- -- -- -- -- -- -- -- -- -- Max. 6.5 6.5 Vcc Vcc Vcc Vcc 0.2×Vcc 0.8 0.2×Vcc 0.15×Vcc +85 Unit V V V V V V V V V V °C
Pin Capacitance
Table 5
Parameter Input Capacitance Output Capacitance Symbol CIN COUT Conditions VIN=0 V VOUT=0 V Min. -- -- (Ta=25°C, f=1.0 MHz, VCC=5 V) Typ. -- -- Max. 8 10 Unit pF pF
Endurance
Table 6
Parameter Endurance Symbol NW Min. 10
5
Typ. --
Max. --
Unit cycles/word
Seiko Instruments Inc.
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