AT28HC64B-90TU Atmel, AT28HC64B-90TU Datasheet - Page 8

• Manufacturer Part Number: AT28HC64B-90TU
• Description: IC EEPROM 64KBIT 90NS 28TSOP
• Manufacturer: Atmel

Specifications of AT28HC64B-90TU

• Format - Memory: EEPROMs - Parallel
• Memory Type: EEPROM
• Memory Size: 64K (8K x 8)
• Speed: 90ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-TSOP
• Density: 64Kb
• Interface Type: Parallel
• Organization: 8Kx8
• Access Time (max): 90ns
• Write Protection: Yes
• Data Retention: 10Year
• Operating Supply Voltage (typ): 5V
• Package Type: TSOP-I
• Operating Temp Range: -40C to 85C
• Supply Current: 40mA
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 28
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

14. AC Write Characteristics
15. AC Write Waveforms
15.1
15.2
8
Symbol
t
t
t
t
t
t
t
AS
AH
CS
CH
WP
DS
DH
, t
, t
OES
OEH
WE Controlled
CE Controlled
AT28HC64B
Parameter
Address, OE Setup Time
Address Hold Time
Chip Select Setup Time
Chip Select Hold Time
Write Pulse Width (WE or CE)
Data Setup Time
Data, OE Hold Time
ADDRESS
DATA IN
ADDRESS
WE
OE
CE
DATA IN
CE
WE
OE
t
t
OES
t
AS
CS
t
t
OES
t
AS
CS
t
t
AH
AH
t
WP
t
WP
t
DS
t
DS
t
t
OEH
CH
t
t
CH
OEH
t
DH
t
Min
100
DH
50
50
0
0
0
0
Max
0274L–PEEPR–2/3/09
Units
ns
ns
ns
ns
ns
ns
ns