at27bv400 ATMEL Corporation, at27bv400 Datasheet - Page 6

• Manufacturer Part Number: at27bv400
• Description: 4-megabit 256k 512k Unregulated Battery-voltage High Speed Eprom
• Manufacturer: ATMEL Corporation

BYTE Transition AC Waveforms
Notes:
Input Test Waveforms and Measurement Levels
t
Pin Capaticance
f = 1 MHz, T = 25 C
Note:
6
R
C
C
, t
IN
OUT
F
< 20 ns (10% to 90%)
1.
2.
3.
4.
5.
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
OE may be delayed up to t
OE may be delayed up to t
This parameter is only sampled and is not 100% tested.
Output float is defined as the point when data is no longer driven.
(1)
AT27BV400
Typ
4
8
CE
ACC
- t
- t
OE
OE
after the falling edge of CE without impact on t
after the address is valid without impact on t
Max
10
12
Units
ACC
pF
pF
CE.
.
Output Test Load
Note:
C
capacitance.
L
= 100 pF including jig
Conditions
V
V
OUT
IN
= 0V
= 0V