AT27C520 View Datasheet(PDF) - Atmel Corporation
Part Name
Description
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AT27C520 Datasheet PDF : 10 Pages
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Programming Waveforms
6.5V
VCC
5.0V
13V
OE/VPP
VIH
VIL
VIH
ALE
VIL
VIH
AD7 - AD0
VIL
VIH
A15 - A8
VIL
PROGRAM
tVCS
READ (VERIFY)
tPRT
tLP
tALE
tLAS
tLAH
ADDR
tAS
tOES tOEH
tVR
tPW
tDS
DATA IN
tALE
tDH
tLAS
tOE
tLAH
tDFP
ADDR
DATA OUT
tAH
ADDRESS STABLE
Notes: 1. The Input Timing Reference is 0.8V for VIL and 2.0V for VIH.
2. tOE and tDFP are characteristics of the device but must be accommodated by the programmer.
DC Programming Characteristics
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, OE/VPP = 13.0 ± 0.25V
Symbol Parameter
ILI
ILI2(1)
Input Load Current
Input Load Current A13
VIL
Input Low Level
VIH
Input High Level
VOL
Output Low Voltage
VOH
Output High Voltage
ICC2
VCC Supply Current (Program and Verify)
IPP2
OE/VPP Current
Note: 1. For address input A13 only.
Test Conditions
VIN = VIL, VIH
VIN = VIL, VIH
IOL = 2.1 mA
IOH = -400 µA
ALE = VIH
Limits
Min
Max
±10
±100
-0.6
0.8
2.0
VCC + 1.0
0.4
2.4
25
25
Units
µA
µA
V
V
V
V
mA
mA
6
AT27C520
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