User Manual

Preliminary W27E020
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READ OPERATION DC CHARACTERISTICS
(Vcc = 5.0V ±10%)
PARAMETER SYM. CONDITIONS LIMITS UNIT
MIN. TYP. MAX.
Input Load Current ILI VIN = 0V to VCC -5 - 5
µA
Output Leakage Current ILO VOUT = 0V to VCC -10 - 10
µA
Standby VCC Current
(TTL input)
ISB
CE
= VIH
- - 1.0 mA
Standby VCC Current
(CMOS input)
ISB1
CE
= VCC ±0.2V
- 5 100
µA
VCC Operating Current ICC
CE
= VIL
IOUT = 0 mA
f = 5 MHz
- - 30 mA
VPP Operating Current IPP VPP = VCC - - 10
µA
Input Low Voltage VIL - -0.3 - 0.8 V
Input High Voltage VIH - 2.0 - VCC +0.5 V
Output Low Voltage VOL IOL = 2.1 mA - - 0.45 V
Output High Voltage VOH IOH = -0.4 mA 2.4 - - V
VPP Operating Voltage VPP - VCC -0.7 - VCC V
READ OPERATION AC CHARACTERISTICS
(VCC = 5.0V ±10%, for 70, 90 and 120 nS; TA = 0 to 70° C)
PARAMETER SYM. W27E020-70 W27E020-90 W27E020-12 UNIT
MIN. MAX. MIN. MAX. MIN. MAX.
Read Cycle Time TRC 70 - 90 - 120 - nS
Chip Enable Access Time TCE - 70 - 90 - 120 nS
Address Access Time TACC - 70 - 90 - 120 nS
Output Enable Access
Time
TOE - 30 - 40 - 55 nS
OE
High to High-Z Output
TDF - 25 - 25 - 30 nS
Output Hold from Address
Change
TOH 0 - 0 - 0 - nS
Note: VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.