5962-8606318YA データシートの表示（PDF） - Austin Semiconductor
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5962-8606318YA Datasheet PDF : 13 Pages
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Austin Semiconductor, Inc.
UVEPROM
AS27C256
OPERATION
The seven modes of operation for the AS27C256 are listed in Table 1. The read mode requires a single 5V supply.
All inputs are TTL level except for V during programming (12.75V for FLASHRITE Pulse), and (12V) on A9
PP
for signature mode.
FUNCTION
(PINS)
E\
G\
VPP
VCC
A9
A0
DQ0-DQ7
TABLE 1. OPERATION MODES
READ
MODE*
OUTPUT
DISABLE
STANDBY
PROGRAMMING
VERIFY
PROGRAM
INHIBIT
SIGNATURE MODE
VIL
VIL
VIH
VIL
VIH
VIH
VIL
VIL
VIH
X
VIH
VIL
X
VIL
X1
X1
X1
VPP
VPP
VPP
VCC
VCC
VCC VCC+/-.3V
VCC
X
X
X
X
VCC
X
VCC
X
VCC
VID2
VID2
X
X
X
Data Out High-Z High-Z
X
Data In
X
X
Data Out High-Z
VIL
VIH
CODE**
MFG DEVICE
01h
10h
1For normal standby & read operation, VPP is Don't Care X.
2 VID = 12V +/- .5V
NOTES:
* X can be VIL or VIH
** Die is AMD. User can program on benchtop programmer by selecting AM27C256 from the device
type selection menu.
AS27C256
Rev. 2.0 7/06
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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