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AT27LV256A-90RC PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 AT27LV256A-90RC
기능 256K 32K x 8 Low Voltage OTP CMOS EPROM
제조업체 ATMEL Corporation
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AT27LV256A-90RC 데이터시트, 핀배열, 회로
AT27LV256A
Features
Fast Read Access Time - 70 ns
•• Dual Voltage Range Operation
Low Voltage Power Supply Range, 3.0V to 3.6V
or Standard 5V ± 10% Supply Range
Pin Compatible with JEDEC Standard AT27C256
•• Low Power CMOS Operation
20 µA max. (less than 1 µA typical) Standby for VCC = 3.6V
29 mW max. Active at 5 MHz for VCC = 3.6V
JEDEC Standard Packages
32-Lead PLCC
28-Lead 330-mil SOIC
28-Lead TSOP
High Reliability CMOS Technology
2,000V ESD Protection
200 mA Latchup Immunity
RapidProgramming Algorithm - 100 µs/byte (typical)
CMOS and TTL Compatible Inputs and Outputs
JEDEC Standard for LVTTL
Integrated Product Identification Code
•• Commercial and Industrial Temperature Ranges
Description
The AT27LV256A is a high performance, low power, low voltage 262,144 bit one-time
programmable read only memory (OTP EPROM) organized as 32K by 8 bits. It re-
quires only one supply in the range of 3.0V to 3.6V in normal read mode operation,
making it ideal for fast, portable systems using battery power.
Atmel’s innovative design techniques provide fast speeds that rival 5V parts while
keeping the low power consumption of a 3.3V supply. At VCC = 3.0V, any byte can be
accessed in less than 70 ns. With a typical power dissipation of only 18 mW at 5 MHz
and VCC = 3.3V, the AT27LV256A consumes less than one fifth the power of a stand-
ard 5V EPROM.
Pin Configurations
SOIC Top View
(continued)
Pin Name Function
A0 - A14
Addresses
O0 - O7
Outputs
CE Chip Enable
OE Output Enable
NC No Connect
PLCC Top View
256K (32K x 8)
Low Voltage
OTP
CMOS EPROM
AT27LV256A
TSOP Top View
Type 1
Note:PLCC Package Pins 1 and 17
are DON’T CONNECT.
0547A
3-75




AT27LV256A-90RC pdf, 반도체, 판매, 대치품
DC and AC Operating Conditions for Read Operation
Operating Temperature
(Case)
VCC Power Supply
Com.
Ind.
-70
0°C - 70°C
-40°C - 85°C
3.0V to 3.6V
5V ± 10%
AT27LV256A
-90 -12
0°C - 70°C
0°C - 70°C
-40°C - 85°C
-40°C - 85°C
3.0V to 3.6V
3.0V to 3.6V
5V ± 10%
5V ± 10%
-15
0°C - 70°C
-40°C - 85°C
3.0V to 3.6V
5V ± 10%
DC and Operating Characteristics for Read Operation
Symbol Parameter
VCC = 3.0V to 3.6V
ILI Input Load Current
ILO
IPP1 (2)
Output Leakage Current
VPP (1) Read/Standby Current
ISB VCC (1) Standby Current
Condition
VIN = 0V to VCC
VOUT = 0V to VCC
VPP = VCC
ISB1 (CMOS), CE = VCC ± 0.3V
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
Min Max Units
±1 µA
±5 µA
10 µA
20 µA
100 µA
ICC VCC Active Current
VIL Input Low Voltage
VIH Input High Voltage
VOL Output Low Voltage
VOH Output High Voltage
VCC = 4.5V to 5.5V
f = 5 MHz, IOUT = 0 mA,
CE = VIL
IOL = 2.0 mA
IOH = -2.0 mA
8 mA
-0.6 0.8 V
2.0 VCC + 0 .5 V
0.4 V
2.4 V
ILI
ILO
IPP1 (2)
ISB
ICC
Input Load Current
Output Leakage Current
VPP (1) Read/Standby Current
VCC (1) Standby Current
VCC Active Current
VIN = 0V to VCC
VOUT = 0V to VCC
VPP = VCC
ISB1 (CMOS), CE = VCC ± 0.3V
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
f = 5 MHz, IOUT = 0 mA,
CE = VIL
±1 µA
±5 µA
10 µA
100 µA
1 mA
20 mA
VIL Input Low Voltage
VIH Input High Voltage
VOL Output Low Voltage
VOH Output High Voltage
IOL = 2.1 mA
IOH = -400 µA
-0.6 0.8 V
2.0 VCC + 0.5 V
0.4 V
2.4 V
Notes: 1. VCC must be applied simultaneously with or before
VPP, and removed simultaneously with or after
VPP.
2. VPP may be connected directly to VCC, except during
programming. The supply current would then be the sum
of ICC and IPP.
3-78 AT27LV256A

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AT27LV256A-90RC 전자부품, 판매, 대치품
Programming Waveforms (1)
AT27LV256A
Notes: 1. The Input Timing Reference is 0.8V for VIL and 2.0V
for VIH.
2. tOE and tDFP are characteristics of the device but
must be accommodated by the programmer.
3. When programming the AT27LV256A a 0.1 µF capacitor is
required across VPP and ground to suppress spurious
voltage transients.
DC Programming Characteristics
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
Symbol
ILI
VIL
VIH
VOL
VOH
ICC2
IPP2
VID
Parameter
Input Load Current
Input Low Level
Input High Level
Output Low Voltage
Output High Voltage
VCC Supply Current (Program and Verify)
VPP Current
A9 Product Identification Voltage
Test
Conditions
VIN = VIL, VIH
IOL = 2.1 mA
IOH = -400 µA
CE = VIL
Limits
Min Max
Units
±10 µA
-0.6 0.8 V
2.0 VCC + 0.5 V
0.4 V
2.4 V
25 mA
25 mA
11.5 12.5 V
3-81

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