AC Programming Characteristics
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
Limits
Symbol Parameter
Test Conditions(1)
Min
Max
Units
µs
tAS
Address Setup Time
OE Setup Time
2
2
Input Rise and Fall Times:
tOES
tDS
µs
(10% to 90%) 20 ns.
Data Setup Time
2
µs
Input Pulse Levels:
Input Pulse Levels:
tAH
Address Hold Time
0
µs
45V to 2.4V
0.8V to 2.0V
tDH
Data Hold Time
2
µs
tDFP
tVPS
tVCS
tPW
tOE
OE High to Output Float Delay(2)
VPP Setup Time
0
130
ns
2
µs
VCC Setup Time
2
µs
Input Timing Reference Level:
0.8V to 2.0V
CE Program Pulse Width(3)
47.5
52.5
150
µs
Data Valid from OE
ns
Output Timing Reference Level:
0.8V to 2.0V
tPRT
BYTE /VPP Pulse Rise Time During
Programming
50
ns
Notes: 1. Vcc must be applied simultaneously or before VPP and removed simultaneously or after VPP.
2. This parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer
driven— see timing diagram.
3. Program Pulse width tolerance is 50 µs ± 5%.
Atmel’s 27C800 Integrated Product Identification Code
Pins
A0
015
07
0
014
06
0
013
05
0
012
04
1
011
03
1
010
02
1
09
01
1
08
00
0
Codes
Hex Data
1E1E
Manufacturer
Device Type
0
1
1
1
1
1
1
0
0
0
F8F8
AT27C800
8
ATMEL [ ATMEL ]
