27C256-90(2004) データシートの表示（PDF） - Microchip Technology

部品番号

コンポーネント説明

メーカー

27C256-90
(Rev.:2004)

256K (32K x 8) CMOS EPROM

Microchip Technology 

FIGURE 1-3: PROGRAMMING EXPRESS ALGORITHM

27C256

Conditions:

Tamb = 25•C ±5•C

VCC = 6.5 ±0.25V

VPP = 13.0 ±0.25V

Start

ADDR = First Location

VCC = 6.5V

VPP = 13.0V

X=0

Program one 100 µs pulse

Increment X

Verify

Byte

Pass

Fail

No

Yes Device

X = 10 ?

Failed

Last

Yes

Address?

No

Increment Address

VCC = V PP = 4.5V, 5.5V

Device

Passed

All

Yes bytes No Device

= original

Failed

data?

 2004 Microchip Technology Inc.

DS11001N-page 7

Share Link: