DataSheet.jp

ST93CS57 の電気的特性と機能

ST93CS57のメーカーはSTMicroelectronicsです、この部品の機能は「(ST93CS56 / ST93CS57) 2K 128 x 16 SERIAL MICROWIRE EEPROM」です。


製品の詳細 ( Datasheet PDF )

部品番号 ST93CS57
部品説明 (ST93CS56 / ST93CS57) 2K 128 x 16 SERIAL MICROWIRE EEPROM
メーカ STMicroelectronics
ロゴ STMicroelectronics ロゴ 




このページの下部にプレビューとST93CS57ダウンロード(pdfファイル)リンクがあります。

Total 16 pages

No Preview Available !

ST93CS57 Datasheet, ST93CS57 PDF,ピン配置, 機能
www.DataSheet4U.com
ST93CS56
ST93CS57
2K (128 x 16) SERIAL MICROWIRE EEPROM
NOT FOR NEW DESIGN
1 MILLION ERASE/WRITE CYCLES, with
40 YEARS DATA RETENTION
SELF-TIMED PROGRAMMING CYCLE with
AUTO-ERASE
READY/BUSY SIGNAL DURING
PROGRAMMING
SINGLE SUPPLY VOLTAGE
– 3V to 5.5V for the ST93CS56
– 2.5V to 5.5V for the ST93CS57
USER DEFINED WRITE PROTECTED AREA
PAGE WRITE MODE (4 WORDS)
SEQUENTIAL READ OPERATION
5ms TYPICAL PROGRAMMING TIME
ST93CS56 and ST93CS57 are replaced by
the M93S56
8
1
PSDIP8 (B)
0.4mm Frame
8
1
SO8 (M)
150mil Width
Figure 1. Logic Diagram
DESCRIPTION
The ST93CS56 and ST93CS57 are 2K bit Electri-
cally Erasable Programmable Memory (EEPROM)
fabricated with SGS-THOMSON’s High Endurance
Single Polysilicon CMOS technology. The memory
is accessed through a serial input D and output Q.
The 2K bit memory is organized as 128 x 16 bit
words.The memory is accessed by a set of instruc-
tions which include Read, Write, Page Write, Write
All and instructions used to set the memory protec-
tion. A Read instruction loads the address of the
first word to be read into an internal address
pointer.
Table 1. Signal Names
S Chip Select Input
D Serial Data Input
Q Serial Data Output
C Serial Clock
PRE
W
Protect Enable
Write Enable
VCC Supply Voltage
VSS Ground
D
C
S
PRE
W
VCC
ST93CS56
ST93CS57
VSS
Q
AI00896B
June 1997
This is information on a product still in production bu t not recommended for new de signs.
1/16

1 Page





ST93CS57 pdf, ピン配列
www.DataSheet4U.com
ST93CS56, ST93CS57
AC MEASUREMENT CONDITIONS
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing
Reference Voltages
20ns
0.2VCC to 0.8VCC
0.3VCC to 0.7VCC
Note that Output Hi-Z is defined as the point where data
is no longer driven.
Figure 3. AC Testing Input Output Waveforms
0.8VCC
0.2VCC
0.7VCC
0.3VCC
AI00825
Table 3. Capacitance (1)
(TA = 25 °C, f = 1 MHz )
Symbol
Parameter
CIN Input Capacitance
COUT
Output Capacitance
Note: 1. Sampled only, not 100% tested.
Test Condition
VIN = 0V
VOUT = 0V
Min
Max
Unit
5 pF
5 pF
Table 4. DC Characteristics (TA = 0 to 70°C or –40 to 85°C; VCC = 3V to 5.5V for ST93CS56 and
VCC = 2.5V to 5.5V for ST93CS57)
Symbol
Parameter
Test Condition
Min Max Unit
ILI Input Leakage Current
0V VIN VCC
±2.5 µA
ILO Output Leakage Current
0V VOUT VCC,
Q in Hi-Z
±2.5 µA
ICC Supply Current (TTL Inputs)
S = VIH, f = 1 MHz
3 mA
Supply Current (CMOS Inputs)
S = VIH, f = 1 MHz
2 mA
ICC1 Supply Current (Standby)
S = VSS, C = VSS
50 µA
Input Low Voltage (ST93CS56,57)
4.5V VCC 5.5V
VIL Input Low Voltage (ST93CS56)
3V VCC 5.5V
–0.1
–0.1
0.8
0.2 VCC
V
V
Input Low Voltage (ST93CS57)
2.5V VCC 5.5V
–0.1
0.2 VCC
V
Input High Voltage (ST93CS56,57)
4.5V VCC 5.5V
2
VCC + 1
V
VIH Input High Voltage (ST93CS56)
3V VCC 5.5V
0.8 VCC
VCC + 1
V
Input High Voltage (ST93CS57)
2.5V VCC 5.5V
0.8 VCC
VCC + 1
V
VOL Output Low Voltage
IOL = 2.1mA
IOL = 10 µA
0.4 V
0.2 V
VOH Output High Voltage
IOH = –400µA
IOH = –10µA
2.4
VCC – 0.2
V
V
3/16


3Pages


ST93CS57 電子部品, 半導体
www.DataSheet4U.com
ST93CS56, ST93CS57
POWER-ON DATA PROTECTION
In order to prevent data corruption and inadvertent
write operations during power up, a Power On
Reset (POR) circuit resets all internal programming
circuitry and sets the device in the Write Disable
mode. When VCC reaches its functional value, the
device is properlyreset (in the Write Disable mode)
and is ready to decode and execute an incoming
instruction. A stable VCC must be applied before
any logic signal.
INSTRUCTIONS
The ST93CS56/57 has eleven instructions, as
shown in Table 6. Each instruction is composed of
a 2 bit op-code and an 8 bit address. Each instruc-
tion is preceded by the rising edge of the signal
applied on the Chip Select ( S) input (assuming that
the Clock C is low). The data input D is then
sampled upon the following rising edges of the
clock C until a ’1’ is sampled and decoded by the
ST93CS56/57 as a Start bit.
The ST93CS56/57 is fabricated in CMOS technol-
ogy and is therefore able to run from zero Hz (static
input signals) up to the maximum ratings (specified
in Table 5).
Read
The Read instruction (READ) outputs serial data
on the Data Output (Q). When a READ instruction
is received, the instruction and address are de-
coded and the data from the memory is transferred
into an output shift register. Adummy ’0’ bit is output
first followed by the 16 bit word with the MSB first.
Table 6. Instruction Set
Instruction
Description
W
pin (1)
PRE
pin
Op
Code
Address (1, 2)
Data
Additional
In formation
READ
Read Data from
Memory
WRITE Write Data to Memory
X ’0’ 10
’1’ ’0’ 01
PAWRITE Page Write to Memory
’1’ ’0’ 11
A7-A0
A7-A0
A7-A0
Q15-Q0
D15-D0
D15-D0
Write is executed if
the address is not
inside the Protected
area
Write is executed if
all the addresses
are not inside the
Protected area
WRALL Write All Memory
Write all data if the
’1’ ’0’ 00 01XX XXXX D15-D0 Protect Register is
cleared
WEN
Write Enable
’1’ ’0’ 00 11XX XXXX
WDS
Write Disable
X ’0’ 00 00XX XXXX
PRREAD Protect Register Read
Data Output =
X
’1’
10
XXXX XXXX
Q8-Q0
Protect Register
content + Protect
Flag bit
PRWRITE Protect Register Write
’1’ ’1’ 01
A7-A0
Data above
specified address
A7-A0 are
protected (2)
PRCLEAR Protect Register Clear
’1’ ’1’ 11 1111 1111
Protect Flag is also
cleared (cleared
Flag = 1)
PREN Protect Register Enable ’1’ ’1’ 00 11XX XXXX
PRDS Protect Register Disable ’1’ ’1’ 00 0000 0000
Notes: 1. X = don’t care bit.
2. Address bit A7 is not decoded by the ST93CS56/57.
OTP bit is set
permanently
6/16

6 Page



ページ 合計 : 16 ページ
 
PDF
ダウンロード
[ ST93CS57 データシート.PDF ]


データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。


共有リンク

Link :


部品番号部品説明メーカ
ST93CS56

(ST93CS56 / ST93CS57) 2K 128 x 16 SERIAL MICROWIRE EEPROM

STMicroelectronics
STMicroelectronics
ST93CS57

(ST93CS56 / ST93CS57) 2K 128 x 16 SERIAL MICROWIRE EEPROM

STMicroelectronics
STMicroelectronics


www.DataSheet.jp    |   2020   |  メール    |   最新    |   Sitemap