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CAT33C804APITE13 датащи(PDF) 1 Page - Catalyst Semiconductor

номер детали CAT33C804APITE13
подробное описание детали  4K-Bit Secure Access Serial E2PROM
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производитель  CATALYST [Catalyst Semiconductor]
домашняя страница  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

CAT33C804APITE13 датащи(HTML) 1 Page - Catalyst Semiconductor

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1
Preliminary
CAT33C804A
4K-Bit Secure Access Serial E2PROM
FEATURES
s Single 3V Supply
s Password READ/WRITE Protection: 1 to 8 Bytes
s Memory Pointer WRITE Protection
s Sequential READ Operation
s 256 x 16 or 512 x 8 Selectable Serial Memory
s UART Compatible Asynchronous Protocol
s Commercial, Industrial and Automotive
Temperature Ranges
s 100,000 Program/Erase Cycles
s I/O Speed: 9600 Baud
–Clock Frequency: 4.9152 MHz Xtal
s Low Power Consumption:
–Active: 3 mA
–Standby: 250
µA
s 100 Year Data Retention
33C804 F02
BLOCK DIAGRAM
5074 FHD F01
PIN CONFIGURATION
SOIC Package (J)
DIP Package (P)
SERIAL
COMMUNI-
CATION
BLOCK
INSTRUCTION
REGISTER
INSTRUCTION
DECODER
STATUS
REGISTER
64-BIT ACCESS CODE
&
CONTROL BLOCK
4K-BIT EEPROM
ARRAY
R/W
BUFFER
ADDRESS
DECODER
ADDRESS
REGISTER
MEMORY
POINTER
DO
CLK
PE
CS
DI
ERR
VCC
GND
CS
CLK
DI
DO
VCC
PE
ERR
GND
DI
DO
NC
NC
ERR
GND
NC
NC
NC
NC
CS
CLK
NC
NC
VCC
PE
1
2
3
4
8
7
6
5
1
2
3
4
16
15
14
13
512
611
710
89
PIN FUNCTIONS
Pin Name
Function
CS
Chip Select
DO(1)
Serial Data Output
CLK
Clock Input
DI(1)
Serial Data Input
PE
Parity Enable
ERR
Error Indication Pin
VCC
+3V Power Supply
GND
Ground
Note:
(1) DI, DO may be tied together to form a common I/O.
DESCRIPTION
The CAT33C804A is a 4K-bit Serial E2PROM that safe-
guards stored data from unauthorized access by use of
a user selectable (1 to 8 byte) access code and a
movable memory pointer. Two operating modes provide
unprotected and password-protected operation allow-
ing the user to configure the device as anything from a
ROM to a fully protected no-access memory. The
CAT33C804A uses a UART compatible asynchronous
protocol and has a Sequential Read feature where data
can be sequentially clocked out of the memory array.
The device is available in 8-pin DIP or 16-pin SOIC
packages.
© 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Doc. No. 25044-00 2/98


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