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STMicroelectronics Electronic Components Datasheet

M93S46-125 Datasheet

MICROWIRE serial EEPROM

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M93S46-125 pdf
M93S66-125 M93S56-125
M93S46-125
Automotive 4-Kbit, 2-Kbit and 1-Kbit
MICROWIRE serial EEPROM with block protection
Datasheet production data
Features
Industry standard MICROWIRETM bus
Single supply voltage: 2.5 to 5.5 V
Single organization: by word (x16)
Programming instructions that work on: word or
entire memory
Self-timed programming cycle with auto-erase
User-defined write-protected area
Page Write mode (4 words)
Ready/Busy signal during programming
Speed: 2-MHz clock rate, 5 ms write time
Sequential Read operation
Enhanced ESD/Latch-up behavior
More than 1 million Erase/Write cycles
More than 40-year data retention
SO8 (MN)
150 mil width
March 2012
This is information on a product in full production.
Doc ID 022567 Rev 1
1/28
www.st.com
1


STMicroelectronics Electronic Components Datasheet

M93S46-125 Datasheet

MICROWIRE serial EEPROM

No Preview Available !

M93S46-125 pdf
Contents
Contents
M93S66-125 M93S56-125 M93S46-125
1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Power-on data protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Write Enable and Write Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3 Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.4 Page Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.5 Write All . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 Write protection and the Protection Register . . . . . . . . . . . . . . . . . . . . 16
4.1 Protection Register Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2 Protection Register Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.3 Protection Register Clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.4 Protection Register Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.5 Protection Register Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5 Common I/O operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6 Clock pulse counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8 DC and AC parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
9 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
10 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
11 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2/28 Doc ID 022567 Rev 1


Part Number M93S46-125
Description MICROWIRE serial EEPROM
Maker STMicroelectronics
Total Page 28 Pages
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