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Part: S-29U131AFS
Category:
Memory
-> ROM
-> EEPROM
-> Serial
-> 3-wire EEPROM
Description: Serial 3-wire EePROM
Company: Seiko Instruments
Datasheet: Download S-29U131AFS datasheet File size : 42 kB
Request For quote: Find where to buy S-29U131AFS
Datasheet text preview:
Contents
Features ........ 1 Pin Assignment ...... 1 Pin Functions.......... 1 Block Diagram ........ 2 Instruction Set ........ 2 Absolute Maximum Ratings ............ 2 Recommended Operating Conditions...... 3 Pin Capacitance ..... 3 Endurance ..... 3 DC Electrical Characteristics .......... 4 AC Electrical Characteristics .......... 5 Operation....... 6 Receiving a Start-Bit...... 11 Three-wire Interface (DI-DO direct connection) .... 11 Memory Protection ........ 11 Ordering Information ..... 12 Characteristics ...... 13 Dimensions ........... 18
Rev.1.11 CMOS SERIAL E2PROM
S-29UXX1A Series
The S-29UXX1A Series is low power 1K/2K/4K-bit serial E PROM with a low operating voltage range. They are organized as 64-wordX16-bit, 128-wordX16-bit and 256-wordX16-bit, respectively. Each is capable of sequential read, where addresses are automatically incremented in 16bit blocks. The instruction code is compatible with the NM93CSXX Series. The S-29UXX1A Series is capable of protecting the memory, 50% of which can be protected starting from address 00.
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Features · Low power consumption Standby : 2.0 µA Max. (VCC=3.6 V) Operating : 0.6 mA Max. (VCC=3.6 V) : 0.4 mA Max. (VCC=2.7 V) Low operating voltage range Read : 0.9 to 3.6 V W r ite : 1.8 to 3.6 V Sequential read capable Memory Protection
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Endurance : 105 cycles/word Data retention : 10 years S-29U131A : 1K bits NM93CS46 instruction code compatible S-29U221A : 2K bits NM93CS56 instruction code compatible S-29U331A : 4K bits NM93CS66 instruction code compatible
Package
8-pin SOP 8-pin SSOP (PKG drawing code :FE008-A) (PKG drawing code :FS008-A)
Pin Assignment
8-pin SOP2 Top view CS SK DI DO 1 2 3 4 8 7 6 5 VCC NC PROTECT GND CS SK DI DO 8-pin SSOP Top view VCC 1 8 NC 2 7 PROTECT 3 6 GND 4 5 S-29U131AFS S-29U221AFS S-29U331AFS * See Dimensions
S-29U131ADFE S-29U221ADFE S-29U331ADFE
Figure 1 Table 1
Pin Functions
Nam e CS SK DI DO GND PROTECT NC VCC Pin Number SOP2 1 2 3 4 5 6 7 8 SSOP 1 2 3 4 5 6 7 8
Function Chip select input Serial clock input Serial data input Serial data output Gr o u n d Memory Protection Control Input Connected to GND or Open : Protection Valid Connected to Vcc : Protection Invalid No Connection Power supply
Seiko Instruments Inc.
1
COMS SERIAL E2PROM S-29UXX1A Series
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Block Diagram
Memory array
PROTECT
Write Protection Circuit
Bank 1* Bank 2
Address decoder
VCC GND
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
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Instruction Set
Table 2
Instruction READ (Read data) WRITE (Write data) ERASE (Erase data) EWEN (Program enable)
Start Bit 1 1 1 1
Ope code 10 01 11 00 S-29U131A A5 to A0 A5 to A0 A5 to A0 11xxxx
Address S-29U221A XA6 to A0 XA6 to A0 XA6 to A0 11xxxxxx S-29U331A A7 to A0 A7 to A0 A7 to A0 11xxxxxx
Data D15 to D0 Output* D15 to D0 Input
00xxxx 00xxxxxx 00xxxxxx EWDS (Program disable) 1 00 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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Absolute Maximum Ratings
Table 3
Parameter Power supply voltage Input voltage Output voltage Storage temperature under bias Storage temperature
Symbol VCC VIN VOUT T bias T stg
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
2
Seiko Instruments Inc.
Others parts begin by s0
S0-1 S0-2 S0-3 S0-4 S0-5 S0-6 S0-7 S0-8 S0-9 S0-10 S0-11 S0-12 S0-13 S0-14 S0-15 S0-16 S0-17 S0-18 S0-19 S0-20 S0-21 S0-22 S0-23
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