AT25HP512_14 Datasheet, PDF (1/21 Pages) ATMEL Corporation – 128-byte Page Mode Only for Write Operations

Features
• Serial Peripheral Interface (SPI) Compatible
• Supports SPI Modes 0 (0,0) and 3 (1,1)
• 128-byte Page Mode Only for Write Operations
• Low-voltage and Standard-voltage Operation
– 2.7 (V_CC = 2.7V to 5.5V)
– 1.8 (V_CC = 1.8V to 5.5V)
• 10 MHz (5V), 5MHz (2.7V) and 2 MHz (1.8V) Clock Rate
• Block Write Protection
• Protect 1/4, 1/2, or Entire Array
• Write Protect (WP) Pin and Write Disable Instructions for
both Hardware and Software Data Protection
• High Reliability
– Endurance: 100K Write Cycles
– Data Retention: >40 Years
• 8-lead PDIP, 8-lead EIAJ SOIC, 16-lead JEDEC SOIC, 8-lead Leadless Array Package,
and 8-lead SOIC Array Package (SAP)
• Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers
SPI Serial
EEPROMs
256K (32,768 x 8)
512K (65,536 x 8)
Description
The AT25HP256/512 provides 262,144/524,288 bits of serial electrically erasable pro-
grammable read only memory (EEPROM) organized as 32,768/65,536 words of 8-bits
each. The device is optimized for use in many industrial and commercial applications
where high-speed, low-power, and low-voltage operation are essential. The
AT25HP256/512 is available in a space saving 8-lead PDIP (AT25HP256/512), 8-lead
EIAJ SOIC (AT25HP256), 16-lead JEDEC SOIC (AT25HP512), 8-lead Leadless Array
(AT25HP256/512) package, and 8-lead SOIC Array package (SAP). In addition, the
entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V) versions.
Table 1. Pin Configurations
Pin Name
Function
CS
Chip Select
SCK
Serial Data Clock
SI
Serial Data Input
SO
Serial Data Output
GND
Ground
16-lead SOIC
CS 1
SO 2
NC 3
NC 4
NC 5
NC 6
WP 7
GND 8
16 VCC
15 HOLD
14 NC
13 NC
12 NC
11 NC
10 SCK
9 SI
VCC
Power Supply
8-lead Leadless Array
WP
HOLD
Write Protect
Suspends Serial Input
VCC 8
HOLD 7
SCK ⁶
SI 5
1 CS
2 SO
3 _WP
4 GND
Bottom View
8-lead SOIC Array Package
(SAP)
VCC 8
HOLD 7
SCK ⁶
SI 5
1 CS
2 _SO
3 _WP
4 GND
8-lead PDIP
CS 1
SO ²
WP ³
GND ⁴
8 VCC
7 _HOLD
6 _SCK
5 _SI
8-lead SOIC
CS 1
SO ²
WP ³
GND ⁴
8 VCC
7 _HOLD
6 _SCK
5 _SI
Bottom View
AT25HP256⁽¹⁾
AT25HP512
Note:
1. Not recommended for
new design; please refer to
AT25256A datasheet.
Rev. 1113L–SEEPR–3/06
1