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AT29LV512-25TI 데이터시트 PDF




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부품번호 AT29LV512-25TI 기능
기능 512K 64K x 8 3-volt Only CMOS Flash Memory
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


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AT29LV512-25TI 데이터시트, 핀배열, 회로
AT29LV512
Features
Single Supply Voltage, Range 3V to 3.6V
3-Volt-Only Read and Write Operation
Software Protected Programming
•• Low Power Dissipation
15 mA Active Current
20 µA CMOS Standby Current
Fast Read Access Time - 200 ns
•• Sector Program Operation
Single Cycle Reprogram (Erase and Program)
512 Sectors (128 bytes/sector)
Internal Address and Data Latches for 128-Bytes
Fast Sector Program Cycle Time - 20 ms Max.
Internal Program Control and Timer
DATA Polling for End of Program Detection
Typical Endurance > 10,000 Cycles
CMOS and TTL Compatible Inputs and Outputs
•• Commercial and Industrial Temperature Ranges
Description
The AT29LV512 is a 3-volt-only in-system Flash programmable erasable read only
memory (PEROM). Its 512K of memory is organized as 65,536 words by 8 bits. Manu-
factured with Atmel’s advanced nonvolatile CMOS technology, the device offers ac-
cess times to 200 ns with power dissipation of just 54 mW over the commercial tem-
perature range. When the device is deselected, the CMOS standby current is less
than 20 µA. The device endurance is such that any sector can typically be written to
in excess of 10,000 times.
(continued)
512K (64K x 8)
3-volt Only
CMOS Flash
Memory
Pin Configurations
Pin Name Function
A0 - A15 Addresses
CE Chip Enable
OE Output Enable
WE Write Enable
I/O0 - I/O7 Data Inputs/Outputs
NC No Connect
PLCC Top View
AT29LV512
TSOP Top View
Type 1
0177I
4-43




AT29LV512-25TI pdf, 반도체, 판매, 대치품
DC and AC Operating Range
AT29LV512-15
AT29LV512-20
AT29LV512-25
Operating
Temperature (Case)
VCC Power Supply (1)
Com.
Ind.
0°C - 70°C
-40°C - 85°C
3.3V ± 0.3V
0°C - 70°C
-40°C - 85°C
3.3V ± 0.3V
0°C - 70°C
-40°C - 85°C
3.3V ± 0.3V
1. After power is applied and VCC is at the minimum specified data sheet value, the system should wait 20 ms before an operational
mode is started.
Operating Modes
Mode
Read
Program (2)
Standby/Write Inhibit
Program Inhibit
Program Inhibit
Output Disable
Product Identification
Hardware
CE OE
VIL VIL
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.
WE Ai I/O
VIH Ai DOUT
VIL Ai DIN
X X High Z
VIH
X
X High Z
VIH
A1 - A15 = VIL, A9 = VH (3),
A0 = VIL
A1 - A15 = VIL, A9 = VH (3),
A0 = VIH
Manufacturer Code (4)
Device Code (4)
A0 = VIL
Manufacturer Code (4)
A0 = VIH
Device Code (4)
4. Manufacturer Code: 1F, Device Code: 3D.
5. See details under Software Product Identification Entry/Exit.
DC Characteristics
Symbol
ILI
ILO
Parameter
Input Load Current
Output Leakage Current
ISB1 VCC Standby Current CMOS
ISB2 VCC Standby Current TTL
ICC VCC Active Current
VIL Input Low Voltage
VIH Input High Voltage
VOL Output Low Voltage
VOH Output High Voltage
Condition
VIN = 0V to VCC
VI/O = 0V to VCC
CE = VCC - 0.3V to VCC
Com.
Ind.
CE = 2.0V to VCC
f = 5 MHz; IOUT = 0 mA; VCC = 3.6V
IOL = 1.6 mA; VCC = 3.0V
IOH = -100 µA; VCC = 3.0V
Min
2.0
2.4
Max
1
1
20
50
1
15
0.6
.45
Units
µA
µA
µA
µA
mA
mA
V
V
V
V
4-46 AT29LV512

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AT29LV512-25TI 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
10
100
100
10
200
200
Software Protected Program Waveform (1, 2, 3)
AT29LV512
Max Units
20 ms
ns
ns
ns
ns
ns
150 µs
ns
Notes: 1. OE must be high when WE and CE are both low.
2. A7 through A15 must specify the sector address
during each high to low transition of WE (or CE)
after the software code has been entered.
Programming Algorithm (1)
LOAD DATA AA
TO
ADDRESS 5555
LOAD DATA 55
TO
ADDRESS 2AAA
LOAD DATA A0
TO
ADDRESS 5555
WRITES ENABLED
LOAD DATA
TO (3)
SECTOR (128 BYTES)
ENTER DATA
(2)
PROTECT STATE
3. All bytes that are not loaded within the sector being
programmed will be indeterminate.
Notes for software program code:
1. Data Format: I/O7 - I/O0 (Hex);
Address Format: A14 - A0 (Hex).
2. Data Protect state will be re-activated at end of program cycle.
3. 128-bytes of data MUST BE loaded.
4-49

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