M28F101 datasheet(7/23 Pages) STMICROELECTRONICS

7 / 23 page

Read Mode. The Read Mode is the default at

power up or may be set-up by writing 00h to the

command register. Subsequent read operations

output data from the memory. The memory remains

in the Read Mode until a new command is written

to the command register.

Electronic Signature Mode. In order to select the

correct erase and programming algorithms for on-

board programming, the manufacturer and device

codes may be read directly. It is not neccessary to

apply a high voltage to A9 when using the com-

mand register. The Electronic Signature Mode is

set-up by writing 90h to the command register. The

following read cycles, with address inputs 00000h

or 00001h, output the manufacturer or device type

codes. The command is terminated by writing an-

other valid command to the command register (for

example Reset).

Symbol

Alt

Parameter

Test Condition

M28F101

Unit

-70

-90

-100

VCC=5V

±5% VCC=5V±10% VCC=5V±10%

SRAM

Interface

EPROM

Interface

EPROM

Interface

Min

Max

Min

Max

Min

Max

tWHGL

Write Enable High to

Output Enable Low

µs

tAVAV

tRC

Read Cycle Time

E = VIL,G = VIL

100

tAVQV

tACC

Address Valid to

Output Valid

E=VIL,G = VIL

100

tELQX

(1)

tLZ

Chip Enable Low to

Output Transition

G= VIL

tELQV

tCE

Chip Enable Low to

Output Valid

G= VIL

100

tGLQX

(1)

tOLZ

Output Enable Low to

Output Transition

E= VIL

tGLQV

tOE

Output Enable Low to

Output Valid

E= VIL

tEHQZ

(1)

Chip Enable High to

Output Hi-Z

G= VIL

tGHQZ

(1)

tDF

Output Enable High to

Output Hi-Z

E= VIL

tAXQX

tOH

Address Transition to

Output Transition

E=VIL,G = VIL

Note: 1. Sampled only, not 100% tested

Table 9A. Read Only Mode AC Characteristics

(TA = 0 to 70

°C, –40 to 85 °C or –40 to 125 °C; 0V ≤ VPP ≤ 6.5V)

7/23

M28F101

M28F101 数据表(PDF) 7 Page - STMicroelectronics

M28F101 数据表(HTML) 7 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

数据表下载

链接网址

M28F101 数据表(PDF) 7 Page - STMicroelectronics

M28F101 数据表(HTML) 7 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

数据表 下载

链接网址

数据表下载