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AT27BV256-90TI の電気的特性と機能

AT27BV256-90TIのメーカーはATMEL Corporationです、この部品の機能は「256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM」です。


製品の詳細 ( Datasheet PDF )

部品番号 AT27BV256-90TI
部品説明 256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM
メーカ ATMEL Corporation
ロゴ ATMEL Corporation ロゴ 




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AT27BV256-90TI Datasheet, AT27BV256-90TI PDF,ピン配置, 機能
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
RapidProgramming 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

1 Page





AT27BV256-90TI pdf, ピン配列
Block Diagram
AT27BV256
Absolute Maximum Ratings*
Temperature Under Bias .................. -40°C to +85°C
Storage Temperature...................... -65°C to +125°C
Voltage on Any Pin with
Respect to Ground......................... -2.0V to +7.0V (1)
Voltage on A9 with
Respect to Ground ...................... -2.0V to +14.0V (1)
VPP Supply Voltage with
Respect to Ground....................... -2.0V to +14.0V (1)
*NOTICE: Stresses beyond those listed under “Absolute Maxi-
mum Ratings” may cause permanent damage to the device.
This is a stress rating only and functional operation of the
device at these or any other conditions beyond those indi-
cated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions
for extended periods may affect device reliability.
Note:
1. Minimum voltage is -0.6V dc which may undershoot
to -2.0V for pulses of less than 20 ns. Maximum out-
put pin voltage is VCC + 0.75V dc which may be ex-
ceeded if certain precautions are observed (consult
application notes) and which may overshoot to
+7.0V for pulses of less than 20 ns.
Operating Modes
Mode \ Pin
Read (2)
Output Disable (2)
Standby (2)
Rapid Program (3)
PGM Verify (3)
Optional PGM Verify (3)
PGM Inhibit (3)
Product Identification (3, 5)
CE
VIL
VIL
VIH
VIL
X
VIL
VIH
VIL
OE Ai VPP
VIL Ai VCC
VIH
X (1)
VCC
X X VCC
VIH Ai VPP
VIL Ai VPP
VIL Ai VCC
VIH X VPP
A9 = VH (4)
VIL A0 = VIH or VIL VCC
A1 - A14 = VIL
VCC
VCC (2)
VCC (2)
VCC (2)
VCC (3)
VCC (3)
VCC (3)
VCC (3)
VCC (3)
Outputs
DOUT
High Z
High Z
DIN
DOUT
DOUT
High Z
Identification
Code
Notes: 1. X can be VIL or VIH.
2. Read, output disable, and standby modes require,
2.7V VCC 3.6V, or 4.5V VCC 5.5V.
3. Refer to Programming Characteristics. Programming
modes require VCC = 6.5V.
4. VH = 12.0 ± 0.5V.
5. Two identifier bytes may be selected. All Ai inputs
are held low (VIL), except A9 which is set to VH and A0
which is toggled low (VIL) to select the Manufacturer’s Identi-
fication byte and high (VIH) to select the Device Code byte.
3-5


3Pages


AT27BV256-90TI 電子部品, 半導体
Input Test Waveform and Measurement Level
Output Test Load
tR, tF < 20 ns (10% to 90%)
Note: CL = 100 pF
including jig capacitance.
Pin Capacitance (f = 1 MHz, T = 25°C) (1)
Typ
Max
Units
Conditions
CIN 4
8 pF VIN = 0V
COUT
8
12 pF VOUT = 0V
Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
3-8 AT27BV256

6 Page



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部品番号部品説明メーカ
AT27BV256-90TC

256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM

ATMEL Corporation
ATMEL Corporation
AT27BV256-90TI

256K 32K x 8 Unregulated Battery-Voltage High Speed OTP CMOS EPROM

ATMEL Corporation
ATMEL Corporation


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