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부품번호 | AT27BV256-70JI 기능 |
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기능 | 256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM | ||
제조업체 | ATMEL Corporation | ||
로고 | ![]() |
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전체 9 페이지수
![]() AT27BV256
Features
Fast Read Access Time - 70 ns
•• Dual Voltage Range Operation
Unregulated Battery Power Supply Range, 2.7V 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 Surface Mount Packages
32-Lead PLCC
28-Lead 330-mil SOIC
28-Lead TSOP
• High Reliability CMOS Technology
2,000V ESD Protection
200 mA Latchup Immunity
• Rapid™ Programming Algorithm - 100 µs/byte (typical)
• CMOS and TTL Compatible Inputs and Outputs
JEDEC Standard for LVTTL and LVBO
Integrated Product Identification Code
•• Commercial and Industrial Temperature Ranges
Description
256K (32K x 8)
Unregulated
Battery-Voltage™
High Speed
OTP
CMOS EPROM
The AT27BV256 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 2.7V to 3.6V in normal read mode operation,
making it ideal for fast, portable systems using either regulated or unregulated battery
power.
Atmel’s innovative design techniques provide fast speeds that rival 5V parts while
keeping the low power consumption of a 3V supply. At VCC = 2.7V, any word can be
accessed in less than 70 ns. With a typical power dissipation of only 18 mW at 5 MHz
and VCC = 3V, the AT27BV256 consumes less than one fifth the power of a standard
5V EPROM.
(continued)
Pin Configurations
SOIC Top View
AT27BV256
Pin Name
A0 - A14
O0 - O7
CE
OE
NC
Function
Addresses
Outputs
Chip Enable
Output Enable
No Connect
PLCC Top View
TSOP Top View
Type 1
Note: PLCC Package Pins 1
and 17 are DON’T CONNECT.
0601A
3-3
![]() ![]() DC and AC Operating Conditions for Read Operation
Operating Temperature (Case) Com.
Ind.
VCC Power Supply
-70
0°C - 70°C
-40°C - 85°C
2.7V to 3.6V
5V ± 10%
AT27BV256
-90 -12
0°C - 70°C
0°C - 70°C
-40°C - 85°C
-40°C - 85°C
2.7V to 3.6V
2.7V to 3.6V
5V ± 10%
5V ± 10%
-15
0°C - 70°C
-40°C - 85°C
2.7V to 3.6V
5V ± 10%
DC and Operating Characteristics for Read Operation
Symbol Parameter
Condition
Min Max Units
VCC = 2.7V to 3.6V
ILI Input Load Current
ILO
IPP1 (2)
Output Leakage Current
VPP (1) Read/Standby Current
VIN = 0V to VCC
VOUT = 0V to VCC
VPP = VCC
±1 µA
±5 µA
10 µA
ISB VCC (1) Standby Current
ISB1 (CMOS), CE = VCC ± 0.3V
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
20 µA
100 µA
ICC VCC Active Current
f = 5 MHz, IOUT = 0 mA, CE = VIL, VCC = 3.6V
8 mA
VIL Input Low Voltage
VCC = 3.0 to 3.6V
VCC = 2.7 to 3.6V
-0.6 0.8 V
-0.6 0.2 x VCC V
VIH Input High Voltage
VCC = 3.0 to 3.6V
VCC = 2.7 to 3.6V
2.0 VCC + 0.5
0.7 x VCC VCC + 0.5
V
V
VOL Output Low Voltage
IOL = 2.0 mA
IOL = 100 µA
0.4 V
0.2 V
IOL = 20 µA
0.1 V
VOH Output High Voltage
IOH = -2.0 mA
IOH = -100 µA
2.4
VCC - 0.2
V
V
VCC = 4.5V to 5.5V
IOH = -20 µA
VCC - 0.1
V
ILI Input Load Current
VIN = 0V to VCC
±1 µA
ILO
IPP1 (2)
ISB
Output Leakage Current
VPP (1) Read/Standby Current
VCC (1) Standby Current
VOUT = 0V to VCC
VPP = VCC
ISB1 (CMOS), CE = VCC ± 0.3V
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
±5 µA
10 µA
100 µA
1 mA
ICC VCC Active Current
f = 5 MHz, IOUT = 0 mA, CE = VIL
20 mA
VIL Input Low Voltage
-0.6 0.8 V
VIH Input High Voltage
2.0 VCC + 0.5 V
VOL Output Low Voltage
IOL = 2.1 mA
0.4 V
VOH Output High Voltage
IOH = -400 µA
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 pro-
gramming. The supply current would then be the sum of ICC
and IPP.
3-6 AT27BV256
4페이지 ![]() ![]() Programming Waveforms (1)
AT27BV256
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 AT27BV256 a 0.1 µF capacitor is
required across VPP and ground to suppress spurious volt-
age 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
3-9
7페이지 | |||
구 성 | 총 9 페이지수 | ||
다운로드 | [ AT27BV256-70JI.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
AT27BV256-70JC | 256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM | ![]() ATMEL Corporation |
AT27BV256-70JI | 256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM | ![]() ATMEL Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |