Datasheet > M27C405-100B6

M27C405-100B6

更新时间： 2023-01-02 16:52:29

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		可编程只读存储器光电二极管
页数	文件大小	规格书
14页	147K
描述
512KX8 OTPROM, 100ns, PDIP32, 0.600 INCH, PLASTIC, DIP-32

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M27C405-100B6 数据手册

M27C405

(1)

Table 9. Programming Mode DC Characteristics

(T = 25 °C; V = 6.25V ± 0.25V; V = 12.75V ± 0.25V)

Symbol

Parameter

Test Condition

Min

Max

±10

Unit

µA

0 ≤ V ≤ V

Input Leakage Current

Supply Current

E = V

Program Current

Input Low Voltage

Input High Voltage

Output Low Voltage

Output High Voltage TTL

A9 Voltage

–0.3

0.8

+ 0.5

= 2.1mA

0.4

= –400µA

2.4

11.5

12.5

Note: 1. V must be applied simultaneously with or before V and removed simultaneously or after V .

(1)

Table 10. Programming Mode AC Characteristics

(T = 25 °C; V = 6.25V ± 0.25V; V = 12.75V ± 0.25V)

Symbol

Alt

Parameter

Test Condition

Min

Max

Unit

µs

Address Valid to Chip Enable Low

Input Valid to Chip Enable Low

AVEL

QVEL

High to Chip Enable Low

VPHEL

VPS

VCHEL

VCS

Chip Enable Program Pulse Width

Chip Enable High to Input Transition

Input Transition to Output Enable Low

Output Enable Low to Output Valid

Output Enable High to Output Hi-Z

105

ELEH

EHQX

OES

QXGL

100

130

GLQV

DFP

GHQZ

Output Enable High to Address

Transition

GHAX

Note: 1. V must be applied simultaneously with or before V and removed simultaneously or after V .

2. Sampled only, not 100% tested.

Programming

12.75V, G is at V and E is pulsed to V . The data

IH IL

to be programmed is applied to 8 bits in parallel to

the data output pins. The levels required for the

When delivered, all bits of the M27C405 are in the

’1’ state.Data is introduced by selectively program-

ming ’0’s into the desired bit locations. Although

only ’0’s will be programmed, both ’1’s and ’0’s can

be present in the data word. The M27C405 is in

address and data inputs are TTL. V is specified

to be 6.25V ±0.25V.

the programming mode when V

input is at

7/14

1...4 5 678 9 10...14

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