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REV.1.8, JUL. 13 , 1998
P/N: PM0455
Patent#: US#5,523,307
MX26C512A
FIGURE 1. PROGRAMMING FLOW CHART
NOTES: 1. VH = 12.0V ± 0.5V
2. X = Either VIH or VIL(For auto select)
3. A1 - A8 = A10 - A15 = VIL(For auto select)
4. See DC Programming Characteristics for VPP voltage during
programming.
MODE SELECT TABLE
PINS
MODE
CE
OE/VPP
A0
A9
OUTPUTS
Read
VIL
VIL
X
X
DOUT
Output Disable
VIL
VIH
X
X
High Z
Standby (TTL)
VIH
X
X
X
High Z
Standby (CMOS)
VCC
X
X
X
High Z
Program
VIL
VPP
X
X
DIN
Program Verify
VIL
VIL
X
X
DOUT
Erase
VIL
VPP
X
VPP
HIGH Z
Erase Verify
VIL
VIL
X
X
DOUT
Program Inhibit
VIH
X
X
X
High Z
Manufacturer Code
VIL
VIL
VIL
VH
C2H
Device Code(26C512)
VIL
VIL
VIH
VH
D1H
START
ADDRESS = FIRST LOCATION
VCC = 5V
VPP = 12.75V
X = 0
PROGRAM ONE 25us PULSE
INCREMENT X
X = 20 ?
VERIFY BYTE
LAST ADDRESS
VCC = 5V
VPP = VIL
VERIFY ALL BYTES
?
DEVICE FAILED
INCREMENT ADDRESS
INTERACTIVE
SECTION
VERIFY SECTION
FAIL
YES
PASS
NO
YES
NO
FAIL
FAIL
?
PROGRAM ONE 25us PULSE
PROGRAM ONE 25us PULSE
DEVICE PASSED
PASS
INDEX