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Features
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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
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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
AT25HP256 (1)
AT25HP512
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
16-lead SOIC
Pin Name
Function
Note:
1. Not recommended for
new design; please refer to
AT25256A datasheet.
CS
1
16
VCC
CS
SCK
SI
SO
Chip Select
Serial Data Clock
Serial Data Input
Serial Data Output
SO
NC
NC
NC
NC
WP
GND
2
3
4
5
6
7
8
15
14
13
12
11
10
9
HOLD
NC
NC
NC
NC
SCK
SI
GND
Ground
VCC
Power Supply
8-lead Leadless Array
WP
HOLD
Write Protect
Suspends Serial Input
VCC
HOLD
SCK
SI
8
7
6
5
1
2
3
4
CS
SO
WP
GND
Bottom View
8-lead SOIC Array Package
(SAP)
8-lead PDIP
8-lead SOIC
VCC
HOLD
SCK
SI
8
7
6
5
1
2
3
4
CS
SO
WP
GND
CS
SO
WP
GND
1
2
3
4
8
7
6
5
VCC
HOLD
SCK
SI
CS
SO
WP
GND
1
2
3
4
8
7
6
5
VCC
HOLD
SCK
SI
Bottom View
Rev. 1113L–SEEPR–3/06
1
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相关代理商/技术参数
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AT25HP512W2-10SU-1.8 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial EEPROMs
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AT25HP512W2-10SU-2.7 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:SPI Serial EEPROMs
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AT25LHV 功能描述:整流器/与可变电容器 750Votls 1.0pF-23pF RoHS:否 制造商:Xicon 电容范围:2.8 pF to 12.5 pF 容差: 电压额定值:200 V 工作温度范围:- 35 C to + 85 C 端接类型:SMD/SMT 产品:Trimmer Capacitors - Ceramic Dielectric
AT25LSD 功能描述:整流器/与可变电容器 125Volts 1.0pF-23pF RoHS:否 制造商:Xicon 电容范围:2.8 pF to 12.5 pF 容差: 电压额定值:200 V 工作温度范围:- 35 C to + 85 C 端接类型:SMD/SMT 产品:Trimmer Capacitors - Ceramic Dielectric
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