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CAT25C04X PDF даташит

Спецификация CAT25C04X изготовлена ​​​​«Catalyst Semiconductor» и имеет функцию, называемую «Supervisory Circuits with SPI Serial E2PROM/ Precision Reset Controller and Watchdog Timer».

Детали детали

Номер произв CAT25C04X
Описание Supervisory Circuits with SPI Serial E2PROM/ Precision Reset Controller and Watchdog Timer
Производители Catalyst Semiconductor
логотип Catalyst Semiconductor логотип 

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CAT25C04X Даташит, Описание, Даташиты
Advanced
CAT25CXXX
Supervisory Circuits with SPI Serial E2PROM, Precision Reset Controller and Watchdog Timer
FEATURES
s 10 MHz SPI Compatible
s 1.8 to 6.0 Volt Operation
s Hardware and Software Protection
s Zero Standby Current
s Low Power CMOS Technology
s SPI Modes (0,0 &1,1)
s Commercial, Industrial and Automotive
Temperature Ranges
s Active High or Low Reset Outputs
– Precision Power Supply Voltage Monitoring
– 5V, 3.3V, 3V and 1.8V Options
DESCRIPTION
The CAT25CXXX is a single chip solution to three
popular functions of EEPROM Memory, precision reset
controller and watchdog timer. The EEPROM Memory is
a 2K/4K/8K/16K/32K-Bit SPI Serial CMOS E2PROM
internally organized as 256x8/512x8/1024x8/2048x8/
4096x8 bits. Catalyst’s advanced CMOS Technology
substantially reduces device power requirements. The
2K/4K devices feature a 16-byte page write buffer. The
8K/16K/32K devices feature a 32-byte page write
buffer.The device operates via the SPI bus serial inter-
face and is enabled though a Chip Select (CS). In
s Watchdog Timer on CS
s 1,000,000 Program/Erase Cycles
s 100 Year Data Retention
s Self-Timed Write Cycle
s 8-Pin DIP/SOIC, 16-Pin SOIC and 14-Pin TSSOP
s Page Write Buffer
s Block Write Protection
– Protect 1/4, 1/2 or all of E2PROM Array
s Programmable Watchdog Timer
s Built-in inadvertent Write Protection
– VCC Lock Out
addition to the Chip Select, the clock input (SCK), data
in (SI) and data out (SO) are required to access the
device. The reset function of the 25CXXX protects the
system during brown out and power up/down condtions.
During system failure the watchdog timer feature pro-
tects the microcontroller with a reset signal. The
CAT25CXXX is designed with software and hardware
write protection features including Block Lock protec-
tion. The device is available in 8-pin DIP, 8-pin SOIC, 16-
pin SOIC and 14-pin TSSOP packages.
PIN CONFIGURATION
TSSOP Package (U14)
SOIC Package (S16)
SOIC Package (S)
DIP Package (P)
CS 1
SO 2
NC 3
NC 4
NC 5
WP 6
VSS 7
14 VCC
CS
13 RESET/RESET SO
12 NC
NC
11 NC
10 NC
9 SCK
8 SI
NC
NC
NC
WP
VSS
1
2
3
4
5
6
7
8
16 VCC
CS 1
15 RESET/RESET SO 2
14 NC
WP 3
13 NC
VSS 4
12 NC
11 NC
10 SCK
9 SI
8 VCC
CS 1
7 RESET/RESET SO 2
6 SCK
WP 3
5 SI
VSS 4
8 VCC
7 RESET/RESET
6 SCK
5 SI
© 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
9-95









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CAT25C04X Даташит, Описание, Даташиты
CAT25CXXX
Advanced
PIN FUNCTIONS
Pin Name
Function
SO Serial Data Output
SCK
Serial Clock
WP Write Protect
VCC +1.8V to +6.0V Power Supply
VSS Ground
CS Chip Select
SI Serial Data Input
RESET/RESET Reset I/O
NC No Connect
BLOCK DIAGRAM
SENSE AMPS
SHIFT REGISTERS
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
SO
SI
CS
WP
SCK
I/O
CONTROL
SPI
CONTROL
LOGIC
BLOCK
PROTECT
LOGIC
XDEC
E2PROM
ARRAY
DATA IN
STORAGE
STATUS
REGISTER
HIGH VOLTAGE/
TIMING CONTROL
RESET/RESET
Reset Controller
Watchdog
High Precision
VCC Monitor
25CXXX F02.1
RELIABILITY CHARACTERISTICS
Symbol
NEND(3)
TDR(3)
VZAP(3)
ILTH(3)(4)
Parameter
Endurance
Data Retention
ESD Susceptibility
Latch-Up
Min.
1,000,000
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
Power-Up Timing(1)(2)
Symbol
tPUR
tPUW
Parameter
Power-up to Read Operation
Power-up to Write Operation
Max.
1
1
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated.
(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.
Units
ms
ms
Stock No. 21085-01 4/98
9-96









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CAT25C04X Даташит, Описание, Даташиты
Advanced
CAT25CXXX
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) ........................ 100 mA
*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 specifica-
tion is not implied. Exposure to any absolute maximum
rating for extended periods may affect device perfor-
mance and reliability.
D.C. OPERATING CHARACTERISTICS
VCC = +1.8V to +6.0V, unless otherwise specified.
Symbol
ICC1
ICC2
ISB
ILI
ILO
Parameter
Power Supply Current
(Operating Write)
Power Supply Current
(Operating Read)
Power Supply Current
(Standby)
Input Leakage Current
Output Leakage Current
Min.
Limits
Typ.
Max.
5
0.4
0
2
3
VIL(3)
VIH(3)
VOL1
VOH1
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
-1
VCC x 0.7
VCC - 0.8
VCC x 0.3
VCC + 0.5
0.4
VOL2
VOH2
Output Low Voltage
Output High Voltage
VCC-0.2
0.2
Units
mA
mA
µA
µA
µA
V
V
V
V
V
V
Test Conditions
VCC = 5V @ 5MHz
SO=open; CS=Vss
VCC = 5.5V
FCLK = 5MHz
CS = VCC
VIN = VSS or VCC
VOUT = 0V to VCC,
CS = 0V
4.5VVCC<5.5V
IOL = 3.0mA
IOH = -1.6mA
1.8VVCC<2.7V
IOL = 150µA
IOH = -100µA
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 20 ns.
(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.
9-97
Stock No. 21085-01 4/98










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Catalyst Semiconductor

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