25LC010A_09 Datasheet, PDF (1/24 Pages) Microchip Technology – 1K-4K SPI Serial EEPROM High Temp Family Data Sheet

25LC010A
25LC020A
25LC040A
1K-4K SPI Serial EEPROM High Temp Family Data Sheet
Features:
• Max. Clock 5 MHz
• Low-Power CMOS Technology:
- Max. Write Current: 5 mA at 5.5V, 5 MHz
- Read Current: 5 mA at 5.5V, 5 MHz
- Standby Current: 10 μA at 5.5V
• 128 x 8 through 512 x 8-bit Organization
• Byte and Page-level Write Operations
• Self-Timed Erase and Write Cycles (6 ms max.)
• Block Write Protection:
- Protect none, 1/4, 1/2 or all of array
• Built-in Write Protection:
- Power-on/off data protection circuitry
- Write enable latch
- Write-protect pin
• Sequential Read
• High Reliability:
- Endurance: >1M erase/write cycles
- Data retention: > 200 years
- ESD protection: > 4000V
• Temperature Range Supported:
- Extended (H):
-40°C to +150°C
• Package is Pb-Free and RoHS Compliant
Pin Function Table
Name
Function
CS
Chip Select Input
SO
Serial Data Output
WP
Write-Protect
VSS
Ground
SI
Serial Data Input
SCK
HOLD
VCC
Serial Clock Input
Hold Input
Supply Voltage
Description:
Microchip Technology Inc. 25LCXXXA* devices are
low-density 1 through 4 Kbit Serial Electrically Eras-
able PROMs (EEPROM). The devices are organized in
blocks of x8-bit memory and support the Serial Periph-
eral Interface (SPI) compatible serial bus architecture.
Byte-level and page-level functions are supported.
The bus signals required are a clock input (SCK) plus
separate data in (SI) and data out (SO) lines. Access to
the device is controlled through a Chip Select (CS)
input.
Communication to the device can be paused via the
hold pin (HOLD). While the device is paused, transi-
tions on its inputs will be ignored, with the exception of
Chip Select, allowing the host to service higher priority
interrupts.
The 25LCXXXA is available in a standard 8-lead SOIC
package. The package is Pb-free and RoHS
Compliant.
Package Types (not to scale)
SOIC
(SN)
CS 1
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 SI
*25LCXXXA is used in this document as a generic part number for the 25 series devices.
© 2009 Microchip Technology Inc.
Preliminary
DS22136B-page 1