Document
25AA010A/25LC010A
1K SPI Bus Serial EEPROM
Device Selection Table
Part Number 25AA010A 25LC010A
VCC Range 1.8-5.5V 2.5-5.5V
Page Size 16 Bytes 16 Bytes
Temp. Ranges I
I, E
Packages P, MS, SN, ST, MC, OT P, MS, SN, ST, MC, OT
Features:
• 10 MHz max. Clock Frequency
• Low-Power CMOS Technology:
- Max. Write Current: 5 mA at 5.5V, 10 MHz
- Read Current: 5 mA at 5.5V, 10 MHz
- Standby Current: 5 μA at 5.5V
• 128 x 8-bit Organization
• Write Page mode (up to 16 bytes)
• Sequential Read
• Self-Timed Erase and Write Cycles (5 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
• High Reliability:
- Endurance: 1,000,000 Erase/Write cycles
- Data retention: > 200 years
- ESD protection: > 4000V
• Temperature Ranges Supported:
- Industrial (I):
-40°C to +85°C
- Automotive (E):
-40°C to +125°C
• Pb-Free and RoHS Compliant
Pin Function Table
Name
Function
CS Chip Select Input SO Serial Data Output
WP VSS SI SCK
Write-Protect Ground Serial Data Input Serial Clock Input
HOLD VCC
Hold Input Supply Voltage
Description:
The Microchip Technology Inc. 25XX010A* is a 1 Kbit Serial Electrically Erasable Programmable Read-Only Memory (EEPROM). The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. 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, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts.
The 25XX010A is available in standard packages including 8-lead PDIP and SOIC, and advanced packages including 8-lead MSOP, 8-lead TSSOP and rotated TSSOP, 8-lead 2x3 DFN, and 6-lead SOT-23.
Package Types (not to scale)
TSSOP/MSOP
(ST, MS)
PDIP/SOIC
(P, SN)
CS 1 SO 2 WP 3 VSS 4
8 VCC 7 HOLD 6 SCK 5 SI
CS 1 SO 2 WP 3 VSS 4
8 VCC 7 HOLD 6 SCK 5 SI
SOT-23
(OT)
SCK
VSS SI
1 2 3
6 VDD
5 CS 4 SO
DFN
(MC)
CS 1 SO 2 WP 3 VSS 4
8 VCC 7 HOLD 6 SCK 5 SI
X-Rotated TSSOP
(X/ST)
HOLD VCC
CS SO
1 2
3 4
8 SCK 7 SI 6 VSS 5 WP
*25XX010A is used in this document as a generic part number for the 25AA010A and the 25LC010A.
© 2008 Microchip Technology Inc.
DS21832E-page 1
25AA010A/25LC010A
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings(†)
VCC.............................................................................................................................................................................6.5V All inputs and outputs w.r.t. VSS ......................................................................................................... -0.6V to VCC +1.0V Storage temperature ........................................................................