AT29C256-20PI Atmel, AT29C256-20PI Datasheet - Page 10

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

Specifications of AT29C256-20PI

• 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: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: AT29C25620PI

16. Program Cycle Characteristics
17. Program Cycle Waveforms
Notes:
10
Symbol
t
t
t
t
t
t
t
t
WC
AS
AH
DS
DH
WP
BLC
WPH
1. A6 through A14 must specify the page address during each high-to-low transition of WE (or CE).
2. OE must be high when WE and CE are both low.
3. All bytes that are not loaded within the page being programmed will be indeterminate.
AT29C256
Parameter
Write Cycle Time
Address Set-up Time
Address Hold Time
Data Set-up Time
Data Hold Time
Write Pulse Width
Byte Load Cycle Time
Write Pulse Width High
(1)(2)(3)
Min
100
50
35
90
0
0
Max
150
10
0046S–FLASH–2/07
Units
ms
ns
ns
ns
ns
ns
µs
ns