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AT29C020-15PC 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 AT29C020-15PC은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 AT29C020-15PC 기능
기능 2-Megabit 256K x 8 5-volt Only CMOS Flash Memory
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


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AT29C020-15PC 데이터시트, 핀배열, 회로
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




AT29C020-15PC pdf, 반도체, 판매, 대치품
Device Operation (Continued)
either boot block section is locked out. See Software Prod-
uct Identification Entry and Exit sections. When the device
is in the software product identification mode, a read from
location 00002H will show if programming the lower ad-
dress boot block is locked out while reading location
FFFF2H will do so for the upper boot block. If the data is
DC and AC Operating Range
FE, the corresponding block can be programmed; if the
data is FF, the program lockout feature has been activated
and the corresponding block cannot be programmed. The
software product identification exit mode should be used
to return to standard operation.
Operating
Temperature (Case)
VCC Power Supply
Com.
Ind.
AT29C020-90
0°C - 70°C
5V ± 10%
AT29C020-10
0°C - 70°C
-40°C - 85°C
5V ± 10%
AT29C020-12
0°C - 70°C
-40°C - 85°C
5V ± 10%
AT29C020-15
0°C - 70°C
-40°C - 85°C
5V ± 10%
Operating Modes
Mode
Read
Program (2)
5V Chip Erase
Standby/Write Inhibit
Program Inhibit
Program Inhibit
Output Disable
Product Identification
Hardware
CE OE
VIL VIL
VIL VIH
VIL VIH
VIH X (1)
XX
X VIL
X VIH
VIL VIL
Software (5)
Notes: 1. X can be VIL or VIH.
2. Refer to AC Programming Waveforms.
3. VH = 12.0V ± 0.5V.
DC Characteristics
WE Ai I/O
VIH Ai DOUT
VIL Ai DIN
VIL Ai
X X High Z
VIH
X
X High Z
VIH
A1 - A17 = VIL, A9 = VH, (3)
A0 = VIL
A1 - A17 = VIL, A9 = VH,
A0 = VIH
Manufacturer Code (4)
Device Code (4)
A0 = VIL
Manufacturer Code (4)
A0 = VIH
Device Code (4)
4. Manufacturer Code: 1F, Device Code: DA
5. See details under Software Product Identification Entry/Exit.
Symbol
ILI
ILO
Parameter
Input Load Current
Output Leakage Current
ISB1 VCC Standby Current CMOS
ISB2
ICC
VIL
VIH
VOL
VOH1
VOH2
VCC Standby Current TTL
VCC Active Current
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Output High Voltage CMOS
Condition
VIN = 0V to VCC
VI/O = 0V to VCC
CE = VCC - 0.3V to VCC
CE = 2.0V to VCC
f = 5 MHz; IOUT = 0 mA
Com.
Ind.
IOL = 2.1 mA
IOH = -400 µA
IOH = -100 µA; VCC = 4.5V
Min Max Units
10 µA
10 µA
100 µA
300 µA
3 mA
40 mA
0.8 V
2.0 V
.45 V
2.4 V
4.2 V
4 AT29C020

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AT29C020-15PC 전자부품, 판매, 대치품
Program Cycle Characteristics
Symbol
tWC
tAS
tAH
tDS
tDH
tWP
tBLC
tWPH
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
Min
0
50
50
0
90
100
Program Cycle Waveforms (1, 2, 3)
AT29C020
Max Units
10 ms
ns
ns
ns
ns
ns
150 µs
ns
Notes: 1. A8 through A17 must specify the sector 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 sector being
programmed will be indeterminate.
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AT29C020-15PC

2-Megabit 256K x 8 5-volt Only CMOS Flash Memory

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