AT29C256-20TC Atmel, AT29C256-20TC Datasheet - Page 12

• Manufacturer Part Number: AT29C256-20TC
• Description: IC FLASH 256KBIT 200NS 28TSOP
• Manufacturer: Atmel

Specifications of AT29C256-20TC

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 256K (32K x 8)
• Speed: 200ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-TSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: AT29C25620TC

21. Data Polling Characteristics
Notes:
22. Data Polling Waveforms
23. Toggle Bit Characteristics
Notes:
24. Toggle Bit Waveforms
Notes:
12
Symbol
t
t
t
t
Symbol
t
t
t
t
t
DH
OEH
OE
WR
DH
OEH
OE
OEHP
WR
1. These parameters are characterized and not 100% tested.
2. See t
1. These parameters are characterized and not 100% tested.
2. See t
1. Toggling either OE or CE or both OE and CE will operate toggle bit.
2. Beginning and ending state of I/O6 will vary.
3. Any address location may be used but the address should not vary.
AT29C256
Parameter
Data Hold Time
OE Hold Time
OE to Output Delay
Write Recovery Time
Parameter
Data Hold Time
OE Hold Time
OE to Output Delay
OE High Pulse
Write Recovery Time
OE
OE
spec in AC Read Characteristics.
spec in AC Read Characteristics.
(2)
(2)
(1)(2)(3)
(1)
(1)
Min
Min
150
10
10
0
0
0
0
Typ
Typ
Max
Max
0046S–FLASH–2/07
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns