AT25128A-10PI-1.8 데이터 시트보기 (PDF) - Atmel Corporation

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AT25128A-10PI-1.8

SPI Serial EEPROMs

Atmel Corporation 

Block Write protection is enabled by programming the status register with top ¼, top ½

or entire array of write protection. Separate Program Enable and Program Disable

instructions are provided for additional data protection. Hardware data protection is pro-

vided via the WP pin to protect against inadvertent write attempts to the status register.

The HOLD pin may be used to suspend any serial communication without resetting the

serial sequence.

Absolute Maximum Ratings*

Operating Temperature......................................−55°C to +125°C

Storage Temperature .........................................−65°C to +150°C

Voltage on Any Pin

with Respect to Ground ........................................ −1.0V to +7.0V

Maximum Operating Voltage .......................................... 6.25V

DC Output Current........................................................ 5.0 mA

*NOTICE:

Stresses beyond those listed under “Absolute Maxi-

mum Ratings” may cause permanent damage to the

device. This is a stress rating only and functional

operation of the device at these or any other condi-

tions beyond those indicated in the operational sec-

tions of this specification is not implied. Exposure to

absolute maximum rating conditions for extended

periods may affect device reliability.

Figure 1. Block Diagram

16384/32768 x 8

Table 2. Pin Capacitance(1)

Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, VCC = +5.0V (unless otherwise noted)

Symbol Test Conditions

Max

Units

Conditions

COUT

CIN

Note:

Output Capacitance (SO)

Input Capacitance (CS, SCK, SI, WP, HOLD)

1. This parameter is characterized and is not 100% tested.

8

pF

VOUT = 0V

6

pF

VIN = 0V

2 AT25128A/256A

3368H–SEEPR–8/05

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