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ST93CS46 の電気的特性と機能

ST93CS46のメーカーはSTMicroelectronicsです、この部品の機能は「(ST93CS46 / ST93CS47) 1K 64 x 16 SERIAL MICROWIRE EEPROM」です。


製品の詳細 ( Datasheet PDF )

部品番号 ST93CS46
部品説明 (ST93CS46 / ST93CS47) 1K 64 x 16 SERIAL MICROWIRE EEPROM
メーカ STMicroelectronics
ロゴ STMicroelectronics ロゴ 




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ST93CS46 Datasheet, ST93CS46 PDF,ピン配置, 機能
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ST93CS46
ST93CS47
1K (64 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 ST93CS46
– 2.5V to 5.5V for the ST93CS47
USER DEFINED WRITE PROTECTED AREA
PAGE WRITE MODE (4 WORDS)
SEQUENTIAL READ OPERATION
5ms TYPICAL PROGRAMMING TIME
ST93CS46 and ST93CS47 are replaced by
the M93S46
8
1
PSDIP8 (B)
0.4mm Frame
8
1
SO8 (M)
150mil Width
Figure 1. Logic Diagram
DESCRIPTION
The ST93CS46 and ST93CS47 are 1K 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 1K bit memory is organized as 64 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
ST93CS46
ST93CS47
VSS
Q
AI00884B
June 1997
This is information on a product still in production bu t not recommended for new de signs.
1/16

1 Page





ST93CS46 pdf, ピン配列
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ST93CS46, ST93CS47
AC MEASUREMENT CONDITIONS
Input Rise and Fall Times
Input Pulse Voltages
20ns (10% to 90%)
0.4V to 2.4V
Input and Output Timing
Reference Voltages
0.8 and 2V
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 ST93CS46 and
VCC = 2.5V to 5.5V for ST93CS47)
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 (ST93CS46,47)
4.5V VCC 5.5V
VIL Input Low Voltage (ST93CS46)
3V VCC 5.5V
–0.1
–0.1
0.8
0.2 VCC
V
V
Input Low Voltage (ST93CS47)
2.5V VCC 5.5V
–0.1
0.2 VCC
V
Input High Voltage (ST93CS46,47)
4.5V VCC 5.5V
2
VCC + 1
V
VIH Input High Voltage (ST93CS46)
3V VCC 5.5V
0.8 VCC
VCC + 1
V
Input High Voltage (ST93CS47)
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


ST93CS46 電子部品, 半導体
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ST93CS46, ST93CS47
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 ST93CS46/47 has eleven instructions, as
shown in Table 6. Each instruction is preceded by
the rising edge of the signal applied on the Chip
Select (S) input (assuming that the Clock C is low),
followed by a ’1’ read on D input during the rising
edge of the clock C. The op-codes of the instruc-
tions are made up of the 2 following bits. Some
instructions use only these first two bits, others use
also the first two bits of the address field to define
the op-code. The address field is six bits long
(A5-A0).
The ST93CS46/47 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 shiftregister. A dummy ’0’ bit is output
first followed by the 16 bit word with the MSB first.
Table 6. Instruction Set
Instruction
Description
W
Pin (1)
READ
Read Data from Memory X
WRITE Write Data to Memory
’1’
PAWRITE Page Write to Memory
’1’
WRALL Write All Memory
WEN
WDS
Write Enable
Write Disable
PRREAD Protect Register Read
’1’
’1’
X
X
PRWRITE Protect Register Write
’1’
PRCLEAR Protect Register Clear
’1’
PREN
Protect Register Enable
PRDS
Protect Register Disable
Note: 1. X = don’t care bit.
’1’
’1’
PRE
Pin
’0’
’0’
’0’
’0’
’0’
’0’
’1’
’1’
’1’
’1’
’1’
Op
Code
10
01
11
00
00
00
10
01
11
00
00
Address (1)
A5-A0
A5-A0
A5-A0
01XXXX
11XXXX
00XXXX
XXXXXX
A5-A0
111111
11XXXX
000000
Data
Q15-Q0
D15-D0
D15-D0
D15-D0
Q8-Q0
Additional
In formation
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
Write all data if the
Protect Register is
cleared
Data Output =
Protect Register
content + Protect
Flag bit
Data above
specified address
A5-A0 are protected
Protect Flag is also
cleared (cleared
Flag = 1)
OTP bit is set
permanently
6/16

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部品番号部品説明メーカ
ST93CS46

(ST93CS46 / ST93CS47) 1K 64 x 16 SERIAL MICROWIRE EEPROM

STMicroelectronics
STMicroelectronics
ST93CS47

(ST93CS46 / ST93CS47) 1K 64 x 16 SERIAL MICROWIRE EEPROM

STMicroelectronics
STMicroelectronics


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