M95640 EEPROMs Datasheet

M95640 Datasheet, PDF, Equivalent


Part Number

M95640

Description

64-Kbit Serial SPI bus EEPROMs

Manufacture

ST Microelectronics

Total Page 30 Pages
Datasheet
Download M95640 Datasheet


M95640
M95320 M95320-W M95320-R
M95640 M95640-W M95640-R
32 Kbit and 64 Kbit Serial SPI bus EEPROMs
with high speed clock
Feature summary
Compatible with SPI Bus Serial Interface
(Positive Clock SPI Modes)
Single Supply Voltage:
– 4.5 to 5.5V for M95320 and M95640
– 2.5 to 5.5V for M95320-W and M95320-W
– 1.8 to 5.5V for M95320-R and M95640-R
10MHz, 5MHz or 2MHz clock rates
5ms or 10ms Write Time
Status Register
Hardware Protection of the Status Register
Byte and Page Write (up to 32 Bytes)
Self-Timed Programming Cycle
Adjustable Size Read-Only EEPROM Area
Enhanced ESD Protection
More than 1 million Write cycles
More than 40-Year Data Retention
Packages
– ECOPACK® (RoHS compliant)
SO8 (MN)
150 mil width
TSSOP8 (DW)
169 mil width
MLP8 (MB)
2x3 mm
July 2006
Rev 6
1/44
www.st.com
1

M95640
Contents
Contents
M95320, M95640, M95320-x, M95640-x
1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Signal description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.0.1 Serial Data Output (Q) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.0.2 Serial Data Input (D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.0.3 Serial Clock (C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.0.4 Chip Select (S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.0.5 Hold (HOLD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.0.6 Write Protect (W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Connecting to the SPI bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 SPI modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Operating features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Supply voltage (VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1.1 Operating supply voltage VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1.2 Power-up conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1.3 Internal device Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1.4 Power-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 Active Power and Standby Power modes . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2.1 Hold condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3 Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.4 Data protection and protocol control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5 Memory organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6 Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.1 Write Enable (WREN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.2 Write Disable (WRDI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.3 Read Status Register (RDSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.3.1 WIP bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.3.2 WEL bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.3.3 BP1, BP0 bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6.3.4 SRWD bit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2/44


Features M95320 M95320-W M95320-R M95640 M95640-W M95640-R 32 Kbit and 64 Kbit Serial SP I bus EEPROMs with high speed clock Fe ature summary ■ Compatible with SPI B us Serial Interface (Positive Clock SPI Modes) ■ Single Supply Voltage: – 4.5 to 5.5V for M95320 and M95640 – 2 .5 to 5.5V for M95320-W and M95320-W 1.8 to 5.5V for M95320-R and M95640-R ■ 10MHz, 5MHz or 2MHz clock rates 5ms or 10ms Write Time ■ Status Reg ister ■ Hardware Protection of the St atus Register ■ Byte and Page Write ( up to 32 Bytes) ■ Self-Timed Programm ing Cycle ■ Adjustable Size Read-Only EEPROM Area ■ Enhanced ESD Protectio n ■ More than 1 million Write cycles ■ More than 40-Year Data Retention Packages – ECOPACK® (RoHS complian t) SO8 (MN) 150 mil width TSSOP8 (DW) 169 mil width MLP8 (MB) 2x3 mm July 20 06 Rev 6 1/44 www.st.com 1 Contents Contents M95320, M95640, M95320-x, M9 5640-x 1 Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2 Signal description . . .
Keywords M95640, datasheet, pdf, ST Microelectronics, 64-Kbit, Serial, SPI, bus, EEPROMs, 95640, 5640, 640, M9564, M956, M95, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




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