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AT93C56B 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 AT93C56B은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 AT93C56B 기능
기능 (AT93C56B / AT93C66B) Three-wire Serial Electrically Erasable Programmable Read-only Memory
제조업체 ATMEL Corporation
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AT93C56B 데이터시트, 핀배열, 회로
Features
Low-voltage and standard-voltage operation
– VCC = 1.7V to 5.5V
User-selectable internal organization
– 2K: 256 x 8 or 128 x 16
– 4K: 512 x 8 or 256 x 16
Three-wire serial interface
Sequential read operation
2MHz clock rate (5V)
Self-timed write cycle (5ms max)
High reliability
– Endurance: One million write cycles
– Data retention: 100 years
8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead UDFN, 8-lead XDFN, and 8-ball VFBGA
packages
Description
The Atmel® AT93C56B/66B provides 2048/4096 bits of serial electrically erasable pro-
grammable read-only memory (EEPROM) organized as 128/256 words of 16 bits each
(when the ORG pin is connected to VCC) and 256/512 words of 8 bits each (when the
ORG pin is tied to ground). The device is optimized for use in many industrial and commer-
cial applications where low-power and low-voltage operations are essential. The
AT93C56B/66B is available in space-saving 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead
UDFN, 8-lead XDFN, and 8-ball VFBGA packages.
The AT93C56B/66B is enabled through the chip select pin (CS) and accessed via a
three-wire serial interface consisting of data input (DI), data output (DO), and shift clock
(SK). Upon receiving a read instruction at DI, the address is decoded and the data is clocked
out serially on the data output pin, DO. The write cycle is completely self-timed, and no sep-
arate erase cycle is required before write. The write cycle is only enabled when the part is in
the erase/write enable state. When CS is brought high following the initiation of a write
cycle, the DO pin outputs the ready/busy status of the part.
The AT93C56B/66B operates from 1.7V to 5.5V.
8-lead SOIC
8-lead TSSOP
Figure 0-1. Pin Configurations
Pin Name
CS
Function
Chip Select
CS 1
SK 2
DI 3
DO 4
CS 1
8 VCC
SK 2
7 NC
DI 3
6 ORG
DO 4
5 GND
8 VCC
7 NC
6 ORG
5 GND
SK Serial Data Clock
8-lead UDFN
8-lead XDFN
DI
DO
GND
VCC
ORG
NC
Serial Data Input
Serial Data Output
Ground
Power Supply
Internal Organization
No Connect
VCC 8
NC 7
ORG 6
GND 5
1 CS
2 SK
3 DI
4 DO
VCC 8
NC 7
ORG 6
GND 5
1 CS
2 SK
3 DI
4 DO
Bottom view
8-ball VFBGA
Bottom view
VCC
NC
ORG
GND
8
7
6
5
1 CS
2 SK
3 DI
4 DO
Bottom view
Three-wire
Serial Electrically
Erasable
Programmable
Read-only Memory
2K (256 x 8 or 128 x 16)
4K (512 x 8 or 256 x 16)
Atmel AT93C56B
Atmel AT93C66B
8735A–SEEPR–1/11
Free Datasheet http://www.datasheet4u.com/




AT93C56B pdf, 반도체, 판매, 대치품
Table 1-3. AC Characteristics
Applicable over recommended operating range from TAI = 40°C to + 85°C, VCC = as specified, CL = 1 TTL gate and 100pF
(unless otherwise noted)
Symbol
fSK
Parameter
SK Clock Frequency
tSKH SK High Time
tSKL SK Low Time
tCS Minimum CS Low Time
tCSS CS Setup Time
tDIS DI Setup Time
tCSH CS Hold Time
tDIH DI Hold Time
tPD1 Output Delay to 1
tPD0 Output Delay to 0
tSV CS to Status Valid
CS to DO in
tDF High Impedance
tWP Write Cycle Time
Endurance(1) 5.0V, 25°C
Test Condition
4.5V VCC  5.5V
2.5V VCC  5.5V
1.7V VCC  5.5V
2.5V VCC  5.5V
1.7V VCC  5.5V
2.5V VCC  5.5V
1.7V VCC  5.5V
2.5V VCC  5.5V
1.7V VCC  5.5V
Relative to SK
Relative to SK
Relative to SK
Relative to SK
AC Test
AC Test
AC Test
AC Test
CS = VIL
2.5V VCC  5.5V
1.7V VCC  5.5V
2.5V VCC  5.5V
1.7V VCC  5.5V
2.5V VCC  5.5V
1.7V VCC  5.5V
2.5V VCC  5.5V
1.7V VCC  5.5V
2.5V VCC  5.5V
1.7V VCC  5.5V
2.5V VCC  5.5V
1.7V VCC  5.5V
2.5V VCC  5.5V
1.7V VCC  5.5V
1.7V VCC  5.5V
Notes: 1. This parameter is characterized, and is not 100% tested
Min
0
0
0
250
1000
250
1000
250
1000
50
200
100
400
0
100
400
1,000,000
Typ
Max Units
2
1 MHz
0.25
ns
ns
ns
ns
250
1000
250
1000
250
1000
150
400
5
ns
ns
ns
ns
ns
ns
ns
ms
Write
Cycles
4 Atmel AT93C56B/66B
8735A–SEEPR–1/11
Free Datasheet http://www.datasheet4u.com/

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AT93C56B 전자부품, 판매, 대치품
Figure 3-2. READ Timing
CS
S
Atmel AT93C56B/66B
CS
Figure 3-3. EWEN Timing
CS
S
1 11
Figure 3-4. EWDS Timing
CS
S
1
CS
CS
8735A–SEEPR–1/11
7
Free Datasheet http://www.datasheet4u.com/

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