Rainbow Electronics W27E520 - Manual (Page 7)

Advance Information W27E520
Publication Release Date: 4/26/2000
- 7 - Revision A1
DC PROGRAMMING CHARACTERISTICS
(V DD = 6.5V
±
0.25V, T A = 25
°
C
±
5
°
C)
PARAMETER SYM. CONDITIONS LIMITS UNIT
MIN. TYP. MAX.
Input Load Current I LI V IN = V IL or V IH -10 - 10 µ
A
V DD Program Current I CP ALE = V IH ,
OE /V PP = V PP
- - 30 mA
V PP Program Current I PP ALE = V IH ,
OE /V PP = V PP
- - 30 mA
Input Low Voltage V IL - -0.3 - 0.8 V
Input High Voltage V IH - 2.4 - V DD +0.5 V
Output Low Voltage (Verify) V OL I OL = 2.1 mA - - 0.45 V
Output High Voltage (Verify) V OH I OH = -0.4 mA 2.4 - - V
A9 Silicon I.D. Voltage V HH V DD = 5V
±
10% 11.5 12.0 12.5 V
V PP Program Voltage V PP - 12.75 13.0 13.25 V
V DD Supply Voltage (Program) V DP - 6.25 6.5 6.75 V
AC PROGRAMMING/ERASE CHARACTERISTICS
(V DD = 6.5V ± 0.25V, T A = 25 ° C ± 5 ° C)
PARAMETER SYM. LIMITS UNIT
MIN. TYP. MAX.
OE /V PP Pulse Rise Time
T PRT 50 - - nS
Address Latch Enable Width T ALE 500 - - nS
ALE Program Pulse Width T PPW 47.5 50 52.5 µ
S
ALE Erase Pulse Width T EPW 95 100 105 mS
ALE Erase Pulse Width 1 T EPW1 47.5 50 52.5 µ
S
ALE Erase Pulse Width 2 T EPW2 95 100 105 mS
Latched Address Setup Time T LAS 100 - - nS
Latched Address Hold Time T LAH 100 - - nS
Address Setup Time T AS 2.0 - - µ
S
Address Hold Time T AH 0 - - µ
S
OE /V PP Setup Time
T OES 2.0 - - µ
S
OE /V PP Hold Time
T OEH 2.0 - - µ
S
Data Setup Time T DS 2.0 - - µ
S
Data Hold Time T DH 2.0 - - µ
S
Data Valid from OE /V PP Low during Erase Verify
T EOE - - 150 nS
Data Valid from OE /V PP Low during Program Verify
T POE - - 150 nS
OE /V PP High to Output High Z
T DFP 0 - 130 nS
OE /V PP High Voltage Delay After ALE Low
T VS 2.0 - - µ
S
OE /V PP Recovery Time
T VR 2.0 - - µ
S
Note: V DD must be applied simultaneously or before V PP and removed simultaneously or after V PP .