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Part: S29LXX1A
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Datasheet: Download S29LXX1A datasheet File size : 1930 kB
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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 Recieving a Start-Bit .......... 11 Three-wire Interface (DI-DO direct connection)... 11 Memory Protection .... 11 Dimensions (Unit:mm)........ 12 Ordering Information .......... 12 Characteristics .... 13
CMOS SERIAL E2PROM
S-29LXX1A Series
2
The S-29LXX1A Series is low power 1K/2K/4K-bit serial E PROM with a low 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 16bit blocks. The instruction code is compatible with the NM93CSXX Series. The S-29LXX1A Series is capable of protecting the memory, 50% of which can be protected starting from address 00.
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Features
· Endurance : 105 cycles/word · Data retention : 10 years · S-29L131A : 1K bits NM93CS46 instruction code compatible · S-29L221A : 2K bits NM93CS56 instruction code compatible · S-29L331A : 4K bits NM93CS66 instruction code compatible
·Low power consumption Standby : 0.8 µA Max. (VCC=5.5 V) Operating : 0.8 mA Max. (VCC=5.5 V) : 0.4 mA Max. (VCC=2.7 V) ·Low operating voltage range Write : 1.8 to 5.5 V Read : 1.8 to 5.5 V ·Sequential read capable ·Memory Protection
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Pin Assignment
8-pin SOP2 CS SK DI DO 1 2 3 4 8 7 6 5 VCC NC PROTECT GND CS SK DI DO 8-pin SSOP 1 8 2 7 3 6 4 5 S-29L131AFS S-29L221AFS S-29L331AFS VCC NC PROTECT GND
S-29L131ADFE S-29L221ADFE S-29L331ADFE
*See n Dimensions
Figure 1
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Pin Functions
Table 1
Name CS SK DI DO GND PROTECT Pin Number SOP2 SSOP 1 1 Chip select input 2 2 Serial clock input 3 4 5 6 3 4 5 6 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
7 8
Seiko Instruments Inc.
1
CMOS SERIAL E2PROM S-29LXX1A Series
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Block Diagram
Memory array Write Protection Circuit
PROTECT
Bank 1* Bank 2
Address decoder
VCC GND
Data register DI Mode decode logic CS
Output buffer
DO
SK
Clock generator * 50% of the memory can be protected starting from address 00
Figure 2
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Instruction Set
Table 2
Start Instruction READ (Read data) WRITE ERASE (Write data) (Erase data) Bit 1 1 1 Ope code 10 01 11 Address Data S-29L131A S-29L221A S-29L331A A5 to A0 A5 to A0 A5 to A0 XA6 to A0 XA6 to A0 XA6 to A0 A7 to A0 A7 to A0 A7 to A0 D15 to D0 Output* D15 to D0 Input
11xxxx 11xxxxxx 11xxxxxx 1 00 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. EWEN (Program enable)
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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 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
2
Seiko Instruments Inc.
Others parts begin by s2
S2-1 S2-2 S2-3 S2-4 S2-5 S2-6 S2-7
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