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CAT35C804A PDF даташит

Спецификация CAT35C804A изготовлена ​​​​«Catalyst Semiconductor» и имеет функцию, называемую «4K-Bit Secure Access Serial E2PROM».

Детали детали

Номер произв CAT35C804A
Описание 4K-Bit Secure Access Serial E2PROM
Производители Catalyst Semiconductor
логотип Catalyst Semiconductor логотип 

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CAT35C804A Даташит, Описание, Даташиты
Preliminary
CAT35C804A
4K-Bit Secure Access Serial E2PROM
FEATURES
s Single 5V Supply
s Password READ/WRITE Protection: 1 to 8 Bytes
s Memory Pointer WRITE Protection
s Sequential READ Operation
s 256 x16 or 512 x 8 Selectable Serial Memory
s UART Compatible Asynchronous Protocol
s 100,000 Program/Erase Cycles
s Commercial, Industrial and Automotive
Temperature Ranges
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
DESCRIPTION
The CAT35C804A 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
PIN CONFIGURATION
DIP Package (P)
SOIC Package (J)
CS 1
CLK 2
DI 3
DO 4
8 VCC
7 PE
NC 1 16 NC
NC 2 15 NC
6 ERR
CS 3 14 VCC
5 GND CLK 4 13 PE
DI 5 12 ERR
DO 6 11 GND
NC 7 10 NC
NC 8
9 NC
PIN FUNCTIONS
5074 FHD F01
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 +5V Power Supply
GND
Ground
Note:
(1) DI, DO may be tied together to form a common I/O.
ROM to a fully protected no-access memory. The
CAT35C804A 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.
BLOCK DIAGRAM
VCC
GND
DO
CLK
SERIAL
COMMUNI-
PE CATION
CS BLOCK
DI
ERR
INSTRUCTION
REGISTER
INSTRUCTION
DECODER
STATUS
REGISTER
64-BIT ACCESS CODE
&
CONTROL BLOCK
4K-BIT EEPROM
ARRAY
R/W ADDRESS
BUFFER DECODER
ADDRESS
REGISTER
MEMORY
POINTER
35C804 F02
© 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 25043-00 2/98









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CAT35C804A Даташит, Описание, Даташиты
CAT35C804A
Preliminary
ABSOLUTE MAXIMUM RATINGS*
Temperature Under Bias ................. –55°C to +125°C
Storage Temperature ....................... –65°C to +150°C
Voltage on Any Pin with
Respect to Ground(1) ........... –2.0V to +VCC + 2.0V
VCC with Respect to Ground ............... –2.0V to +7.0V
Package Power Dissipation
Capability (Ta = 25°C) ................................... 1.0W
Lead Soldering Temperature (10 secs) ............ 300°C
Output Short Circuit Current(2) ........................ 100mA
*COMMENT
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
These are stress ratings only, and functional operation of
the device at these or any other conditions outside of those
listed in the operational sections of this specification is not
implied. Exposure to any absolute maximum rating for
extended periods may affect device performance and
reliability.
RELIABILITY CHARACTERISTICS
Symbol
Parameter
NEND(3)
TDR(3)
VZAP(3)
ILTH(3)(4)
Endurance
Data Retention
ESD Susceptibility
Latch-up
Min.
100,000
100
2000
100
Max.
Units
Cycles/Byte
Years
Volts
mA
Reference Test Method
MIL-STD-883, Test Method 1033
MIL-STD-883, Test Method 1008
MIL-STD-883, Test Method 3015
JEDEC Standard 17
D.C. CHARACTERISTICS
VCC = +5V ±10%,unless otherwise specified.
Symbol
ICC
ISB
VIL
VIH
VOL
VOH
ILI(5)
ILO
Parameter
Power Supply Current
(Operating)
Power Supply Current
(Standby)
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Input Leakage Current
Output Leakage Current
Min.
–0.1
2
2.4
Limits
Typ.
Max.
3
250
0.8
0.4
2
10
Units
mA
µA
V
V
V
V
µA
µA
Test Conditions
VCC = 5.5V, CS = VCC
DO is Unloaded.
VCC = 5.5V, CS = 0V
DI = 0V, CLK = 0V
IOL = 2.1mA
IOH = –400µA
VIN = 5.5V
VOUT = 5.5V, CS = 0V
Note:
(1) The minimum DC input voltage is –0.5V. During transitions, inputs may undershoot to –2.0V for periods of less than 20 ns. Maximum DC
voltage on output pins is VCC +0.5V, which may overshoot to VCC + 2.0V for periods of less than 20ns.
(2) Output shorted for no more than one second. No more than one output shorted at a time.
(3) This parameter is tested initially and after a design or process change that affects the parameter.
(4) Latch-up protection is provided for stresses up to 100 mA on address and data pins from –1V to VCC +1V.
(5) PE pin test conditions: VIH < VIN < VIL
Doc. No. 25043-00 2/98
2









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CAT35C804A Даташит, Описание, Даташиты
Preliminary
CAT35C804A
A.C. CHARACTERISTICS
VCC = +5V ±10%,unless otherwise specified.
Symbol
tCSH
tD
tPD
tHZ(1) (2)
tEW
tCSL
tSV
tVCCS(1)
fCLK
Parameter
CS Hold Time
CLK to DO Delay
CLK to DO Delay
CLK to DO High-Z Delay
Program/Erase Pulse Width
CS Low Pulse Width
ERR Output Delay
VCC to CS Setup Time
Clock Frequency
Min.
0
100
5
DC
Limits
Typ.
Max.
104
150
50
12
150
4.9152
Units
ns
µs
ns
ns
ms
ns
ns
µs
MHz
Test Conditions
CL = 100pF
VIN = VIH or VIL
VOUT = VOH or VOL
CL = 100pF
CL = 100pF
Note:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) tHZ is measured from the falling edge of the clock to the time when the output is no longer driven.
3 Doc. No. 25043-00 2/98










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Номер в каталогеОписаниеПроизводители
CAT35C804A4K-Bit Secure Access Serial E2PROMCatalyst Semiconductor
Catalyst Semiconductor

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