Instruction Manual

Advance Information W27E520
- 6 -
READ OPERATION DC CHARACTERISTICS
(VDD = 4.5V to 5.5V, TA = 0 to 70° C)
PARAMETER SYM. CONDITIONS LIMITS UNIT
MIN. TYP. MAX
.
Input Load Current ILI VIN = 0V to VDD -5 - 5
µA
Output Leakage Current ILO VOUT = 0V to VDD -5 - 5
µA
Standby VDD Current
(CMOS input)
ISB
ALE = VDD ±0.3V,
OE
/VPP = VDD ±0.3V
All others inputs
= GND/ VDD ±0.3V
- - 100
µA
VDD Operating Current IDD
ALE = VIL, IOUT = 0 mA
f = 5 MHz
- - 20 mA
Input Low Voltage VIL - -0.6 - 0.8 V
Input High Voltage VIH - 2.0 - VDD
+0.3
V
Output Low Voltage VOL IOL = 2.1 mA - - 0.4 V
Output High Voltage VOH IOH = -0.4 mA 2.4 - - V
READ OPERATION AC CHARACTERISTICS
(VDD = 4.5V to 5.5V, TA = 0 to 70° C)
PARAMETER SYM. W27E520-70 W27E520-90 UNIT
MIN. MAX. MIN. MAX
.
Address Latch Enable Access Time TCE - 70 - 90 nS
Address Latch Enable Width TALE 45 - 45 - nS
Address Access Time TACC - 70 - 90 nS
Address Setup Time TAS 15 - 15 - nS
Address Hold Time TAH 15 - 15 - nS
Output Enable Access Time TOE - 35 - 35 nS
OE /VPP High to High-Z Output
TDF - 25 - 25 nS
Output Hold from Address Change TOH 0 - 0 - nS
Note: VDD must be applied simultaneously or before VPP and removed simultaneously or after VPP.