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0274L–PEEPR–2/3/09
AT28HC64B
11. Input Test Waveforms and Measurement Level
12. Output Test Load
Note: 1. This parameter is characterized and is not 100% tested.
t
R
, t
F
< 5 ns
13. Pin Capacitance
f = 1 MHz, T = 25°C
(1)
Symbol Typ Max Units Conditions
C
IN
46pFV
IN
= 0 V
C
OUT
812pFV
OUT
= 0 V
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0274L–PEEPR–2/3/09
AT28HC64B
15. AC Write Waveforms
15.1 WE Controlled
15.2 CE
Controlled
14. AC Write Characteristics
Symbol Parameter Min Max Units
t
AS
, t
OES
Address, OE Setup Time 0 ns
t
AH
Address Hold Time 50 ns
t
CS
Chip Select Setup Time 0 ns
t
CH
Chip Select Hold Time 0 ns
t
WP
Write Pulse Width (WE or CE)100ns
t
DS
Data Setup Time 50 ns
t
DH
, t
OEH
Data, OE Hold Time 0 ns
OE
WE
CE
ADDRESS
DATA IN
t
CS
t
OES
t
AS
t
DH
t
OEH
t
AH
t
WP
t
DS
t
CH
OE
WE
CE
ADDRESS
DATA IN
t
CS
t
OES
t
AS
t
DH
t
OEH
t
AH
t
WP
t
DS
t
CH
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0274L–PEEPR–2/3/09
AT28HC64B
17. Page Mode Write Waveforms
(1)(2)
Notes: 1. A6 through A12 must specify the same page address during each high to low transition of WE (or CE).
2. OE
must be high only when WE and CE are both low.
18. Chip Erase Waveforms
t
S
= t
H
= 5 µs (min.)
t
W
= 10 ms (min.)
V
H
= 12.0 V ±0.5 V
16. Page Mode Characteristics
Symbol Parameter Min Max Units
t
WC
Write Cycle Time 10 ms
t
WC
Write Cycle Time (Use AT28HC64BF)) 2 ms
t
AS
Address Setup Time 0 ns
t
AH
Address Hold Time 50 ns
t
DS
Data Setup Time 50 ns
t
DH
Data Hold Time 0 ns
t
WP
Write Pulse Width 100 ns
t
BLC
Byte Load Cycle Time 150 µs
t
WPH
Write Pulse Width High 50 ns
OE
WE
CE
A0 -A12
DATA
t
AS
VALID ADD
VALID DATA
t
AH
t
DS
t
WP
t
WPH
t
DH
t
BLC
t
WC
t
S
t
W
t
H

AT28HC64B-70SU

Mfr. #:
Manufacturer:
Microchip Technology
Description:
EEPROM PRLLEL EEPROM 64K 8K 70NS SOIC IND TMP GR
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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