DataSheet.es    


PDF M34S32 Data sheet ( Hoja de datos )

Número de pieza M34S32
Descripción 32K Serial I2C Bus EEPROM With User-Defined Read-Only Block and 32-Byte OTP Page
Fabricantes ST Microelectronics 
Logotipo ST Microelectronics Logotipo



Hay una vista previa y un enlace de descarga de M34S32 (archivo pdf) en la parte inferior de esta página.


Total 18 Páginas

No Preview Available ! M34S32 Hoja de datos, Descripción, Manual

® M34S32
32K Serial I2C Bus EEPROM
With User-Defined Read-Only Block and 32-Byte OTP Page
PRELIMINARY DATA
s TWO WIRE I2C SERIAL INTERFACE,
SUPPORTS 400kHz PROTOCOL
s COMPATIBLE WITH I2C EXTENDED
ADDRESSING
s 1 MILLION ERASE/WRITE CYCLES
s 40 YEARS DATA RETENTION
s SINGLE SUPPLY VOLTAGE
s HARDWARE WRITE CONTROL
s USER-DEFINED READ-ONLY BLOCK
s 32 BYTES OTP PAGE
s BYTE and PAGE WRITE (up to 32 BYTES)
s BYTE, RANDOM and SEQUENTIAL READ
MODES
s SELF TIMED PROGRAMING CYCLE
s AUTOMATIC ADDRESS INCREMENTING
s ENHANCED ESD and LATCH-UP
PERFORMANCES
Figure 1. Delivery Forms
8
1
PSDIP8 (BN)
0.25 mm Frame
8
1
S08 (MN)
150 mil Width
Figure 2. Logic Diagram
DESCRIPTION
The M34S32 is a 32K bit electrically erasable pro-
grammable memory (EEPROM), organized as
4096 x 8 bits.
Table 1. Signal Names
SDA
Serial Data Address Input/Output
SCL
Serial Clock
WC Write Control
WCR
Write Control of Control Register
VCC Supply Voltage
VSS Ground
VCC
SCL
WC
WCR
M34S32
SDA
VSS
AI02468
June 1998
This is a Preliminary Data. Details are subject to change without notice.
1/18

1 page




M34S32 pdf
M34S32 -
Figure 5. Maximum RL Value versus Bus Capacitance (CBUS) for an I2C Bus
VCC
20
16
12
8
4
0
10
fc = 100kHz
fc = 400kHz
100
CBUS (pF)
SDA
MASTER
SCL
RL
RL
CBUS
1000
CBUS
AI01665
Table 6. DC Characteristics (TA = 0 to 70°C, –40 to 85°C; VCC = 4.5V to 5.5V, 2.5V to 5.5V)
Symbol
Parameter
Test Condition
Min.
Max.
ILI
Input Leakage Current (SCL,
SDA)
0 VIN VCC
±2
ILO Output Leakage Current
0 VOUT VCC; SDA in Hi-Z
±2
Supply Current
ICC
Supply Current (W series)
VCC = 5 V; fC = 400 kHz
(rise/fall time < 30 ns)
VCC = 2.5 V; fC = 400 kHz
(rise/fall time < 30 ns)
2
1
ICC1 Stand-by Current
VIN = VSS or VCC ; VCC = 5 V
10
ICC2 Stand-by Current (W series)
VIN = VSS or VCC ; VCC = 2.5 V
2
VIL Input Low Voltage (WC, WCR)
– 0.3
0.5
VIH Input High Voltage (WC, WCR)
VCC - 0.5
VCC + 1
VIL Input Low Voltage (other pins)
– 0.3
0.3 VCC
VIH Input High Voltage (other pins)
0.7 VCC
VCC + 1
Output Low Voltage
IOL = 3 mA, VCC = 5 V
VOL
Output Low Voltage (W series)
IOL = 2.1 mA, VCC = 2.5 V
0.4
0.4
Unit
µA
µA
mA
mA
µA
µA
V
V
V
V
V
V
5/18

5 Page





M34S32 arduino
M34S32
Example of an incorrect sequence, disabling the
Write in the OTP page:
Start
1010 0010
(OTP page select code)
Ack
xxxx 0000
(MSB address)
Ack
0000 0100
(incorrect LSB address)
Ack (acknowledged, but...)
0100 1101
(the attempts at)
(no ack)
(writing data to the)
1100 1010
(OTP page are)
(no ack)
(not acknowledged)
0101 0011
(no ack)
Stop
Figure 10. Write Modes Sequence with WC = 0
and WCpol = 0
Minimizing System Delay by Polling On ACK.
During the internal Write cycle, the memory disa-
bles itself from the bus in order to copy the data
from the internal latches to the memory cells. The
maximum value of the Write time (tW) is given in
the AC Characteristics table, this timing value may
be reduced by an ACK polling sequence issued by
the master.
The sequence is:
– Initial condition: a Write is in progress (see Fig-
ure 7).
– Step 1: the Master issues a START condition fol-
lowed by a Device Select Byte. (1st byte of the
new instruction)
– Step 2: if the memory is internally writing, no
ACK will be returned. The Master goes back to
Step1. If the memory has terminated the internal
writing, it will issue an ACK.
The memory is ready to receive the second part of
the instruction (the first byte of this instruction was
already sent during Step1).
WC
BYTE WRITE
ACK
ACK
ACK
ACK
DEV SEL
BYTE ADDR BYTE ADDR
DATA IN
R/W
WC
PAGE WRITE
WC (cont'd)
PAGE WRITE
(cont'd)
ACK
ACK
ACK
ACK
DEV SEL
BYTE ADDR BYTE ADDR DATA IN 1
DATA IN 2
R/W
ACK
ACK
DATA IN N
Note: 1. The device has the same behavior when WC = 1 and
WCpol = 1.
11/18
AI01106B

11 Page







PáginasTotal 18 Páginas
PDF Descargar[ Datasheet M34S32.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
M34S3232K Serial I2C Bus EEPROM With User-Defined Read-Only Block and 32-Byte OTP PageST Microelectronics
ST Microelectronics

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar