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PDF AT29C020-15JI Data sheet ( Hoja de datos )
| Número de pieza | AT29C020-15JI | |
| Descripción | 2-Megabit 256K x 8 5-volt Only CMOS Flash Memory | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
Fast Read Access Time - 90 ns
• 5-Volt-Only Reprogramming
•• Sector Program Operation
Single Cycle Reprogram (Erase and Program)
1024 Sectors (256 bytes/sector)
Internal Address and Data Latches for 256-Bytes
Internal Program Control and Timer
• Hardware and Software Data Protection
• Two 8 KB Boot Blocks with Lockout
• Fast Sector Program Cycle Time - 10 ms
• DATA Polling for End of Program Detection
•• Low Power Dissipation
40 mA Active Current
100 µA CMOS Standby Current
Typical Endurance > 10,000 Cycles
•• Single 5V ±10% Supply
CMOS and TTL Compatible Inputs and Outputs
•• Commercial and Industrial Temperature Ranges
2-Megabit
(256K x 8)
5-volt Only
CMOS Flash
Memory
Description
The AT29C020 is a 5-volt-only in-system Flash programmable and erasable read only
memory (PEROM). Its 2 megabits of memory is organized as 262,144 bytes. Manu-
factured with Atmel’s advanced nonvolatile CMOS technology, the device offers ac-
cess times to 90 ns with power dissipation of just 220 mW over the commercial tem-
perature range. When the device is deselected, the CMOS standby current is less
than 100 µA. Device endurance is such that any sector can typically be written to in
excess of 10,000 times.
(continued)
AT29C020
Pin Configurations
Pin Name Function
A0 - A17 Addresses
CE Chip Enable
OE Output Enable
WE Write Enable
I/O0 - I/O7 Data Inputs/Outputs
NC No Connect
DIP Top View
AT29C020
PLCC Top View
TSOP Top View
Type 1
0291I/G20-I–6/97
1 page  
AT29C020
AC Read Characteristics
Symbol
tACC
tCE (1)
tOE (2)
tDF (3, 4)
tOH
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE or OE to Output Float
Output Hold from OE, CE or
Address, whichever
occurred first
AT29C020-90 AT29C020-10 AT29C020-12 AT29C020-15
Min Max Min Max Min Max Min Max
0 90
100 120 150
90 100 120 150
0 40 0 50 0 50 0 70
0 25 0 25 0 30 0 40
0000
AC Read Waveforms (1, 2, 3, 4)
Units
ns
ns
ns
ns
ns
Notes: 1. CE may be delayed up to tACC - tCE after the address
transition without impact on tACC .
2. OE may be delayed up to tCE - tOE after the falling
edge of CE without impact on tCE or by tACC - tOE
after an address change without impact on tACC .
3. tDF is specified from OE or CE whichever occurs first
(CL = 5 pF).
4. This parameter is characterized and is not 100% tested.
Input Test Waveforms and Measurement Level
Output Test Load
tR, tF < 5 ns
Note: While CE is active, any address inputs that cause VIH to drop
below 2.0V or VIL to rise above 0.8V for a duration of up to 15 ns
may cause the device to read incorrectly.
Pin Capacitance (f = 1 MHz, T = 25°C) (1)
Typ Max
CIN 4 6
COUT
8 12
Note: 1. This parameter is characterized and is not 100% tested.
Units
pF
pF
Conditions
VIN = 0V
VOUT = 0V
5
5 Page 
Ordering Information
tACC
(ns)
90
ICC (mA)
Active Standby
40 0.1
100 40 0.1
40 0.3
120 40 0.1
40 0.3
150 40 0.1
40 0.3
Ordering Code
AT29C020-90JC
AT29C020-90PC
AT29C020-90TC
AT29C020-10JC
AT29C020-10PC
AT29C020-10TC
AT29C020-10JI
AT29C020-10PI
AT29C020-10TI
AT29C020-12JC
AT29C020-12PC
AT29C020-12TC
AT29C020-12JI
AT29C020-12PI
AT29C020-12TI
AT29C020-15JC
AT29C020-15PC
AT29C020-15TC
AT29C020-15JI
AT29C020-15PI
AT29C020-15TI
AT29C020
Package
32J
32P6
32T
32J
32P6
32T
32J
32P6
32T
32J
32P6
32T
32J
32P6
32T
32J
32P6
32T
32J
32P6
32T
Operation Range
Commercial
(0° to 70°C)
Commercial
(0° to 70°C)
Industrial
(-40° to 85°C)
Commercial
(0° to 70°C)
Industrial
(-40° to 85°C)
Commercial
(0° to 70°C)
Industrial
(-40° to 85°C)
32J
32P6
32T
Package Type
32 Lead, Plastic J-Leaded Chip Carrier (PLCC)
32 Lead, 0.600" Wide, Plastic Dual Inline Package (PDIP)
32 Lead, Thin Small Outline Package (TSOP)
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AT29C020-15JI.PDF ] | |
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