CAT15004 PDF даташит
Спецификация CAT15004 изготовлена «Catalyst Semiconductor» и имеет функцию, называемую «(CAT15002 / CAT15004) Voltage Supervisor». |
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Детали детали
Номер произв | CAT15004 |
Описание | (CAT15002 / CAT15004) Voltage Supervisor |
Производители | Catalyst Semiconductor |
логотип |
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CAT15002, CAT15004
Voltage Supervisor with 2-Kb and 4-Kb SPI
Serial CMOS EEPROM
FEATURES
Precision Power Supply Voltage Monitor
5V, 3.3V, 3V & 2.5V systems
7 threshold voltage options
Active High or Low Reset
Valid reset guaranteed at VCC = 1V
10MHz SPI compatible
16-byte page write buffer
Low power CMOS technology
1,000,000 Program/Erase cycles
100 year data retention
Industrial temperature range
RoHS-compliant 8-pin SOIC package
For Ordering Information details, see page 14.
PIN CONFIGURATION
SOIC (W)
C¯¯S 1
SO 2
¯W¯P¯ 3
8 VCC
7 RST/¯R¯S¯T¯
6 SCK
VSS 4
5 SI
DESCRIPTION
The CAT15002/04 (see table below) are memory and
supervisory solutions for microcontroller based
systems. A CMOS serial EEPROM memory and a
system power supervisor with brown-out protection
are integrated together. Memory interface is via SPI
bus serial interface.
The CAT15002/04 provides a precision VCC sense
circuit with two reset output options: CMOS active low
output or CMOS active high. The RESET output is
active whenever VCC is below the reset threshold or
falls below the reset threshold voltage.
The power supply monitor and reset circuit protect
system controllers during power up/down and against
brownout conditions. Seven reset threshold voltages
support 5V, 3.3V, 3V and 2.5V systems. If power
supply voltages are out of tolerance reset signals
become active, preventing the system microcontroller,
ASIC or peripherals from operating. Reset signals
become inactive typically 240ms after the supply
voltage exceeds the reset threshold level.
MEMORY SIZE SELECTOR
Product
15002
15004
Memory density
2-Kbit
4-Kbit
PIN FUNCTION
Pin Name
C¯¯S
SO
¯W¯P¯
VSS
SI
SCK
RST/¯R¯S¯T¯
VCC
Function
Chip Select
Serial Data Output
Write Protect
Ground
Serial Data Input
Serial Clock Input
Reset Output
Power Supply
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
THRESHOLD SUFFIX SELECTOR
Nominal Threshold
Voltage
4.63V
4.38V
4.00V
3.08V
2.93V
2.63V
2.32V
Threshold Suffix
Designation
L
M
J
T
S
R
Z
1 Doc. No. 1126 Rev. A
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CAT15002, CAT15004
BLOCK DIAGRAM
SO
SCK
SI
CS
WP
EEPROM
VCC
VOLTAGE
DETECTOR
RST or RST
ABSOLUTE MAXIMUM RATINGS(1)
Parameters
Storage Temperature
Voltage on Any Pin with Respect to Ground(2)
VSS
Ratings
-65 to +150
-0.5 to +6.5
Units
°C
V
RELIABILITY CHARACTERISTICS(3)
Symbol
NEND(4)
TDR
Parameter
Endurance
Data Retention
Min
1,000,000
100
Units
Program/ Erase Cycles
Years
D.C. OPERATING CHARACTERISTICS
VCC = +2.5V to +5.5V unless otherwise specified.
Symbol Parameter
ICC Supply Current
ISB Standby Current
IL I/O Pin Leakage
VIL Input Low Voltage
VIH Input High Voltage
VOL Output Low Voltage
VOH Output High Voltage
Min.
Limits
Typ.
12
Max.
2
25
10 20
2
-0.5
0.7 VCC
VCC - 0.8
0.3 VCC
VCC + 0.5
0.4
Test Condition
Read or Write at 10MHz, SO open
VCC < 5.5V; VIN = VSS or VCC, C¯¯S = VCC
VCC < 3.6V; VIN = VSS or VCC, C¯¯S = VCC
Pin at GND or VCC
VCC ≥ 2.5V, IOL = 3.0mA
VCC ≥ 2.5V, IOH = -1.6mA
Units
mA
μA
μA
V
V
V
V
Notes:
(1) 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.
(2) The DC input voltage on any pin should not be lower than -0.5V or higher than VCC + 0.5V. During transitions, the voltage on any pin may
undershoot to no less than -1.5V or overshoot to no more than VCC + 1.5V, for periods of less than 20ns.
(3) These parameters are tested initially and after a design or process change that affects the parameter according to appropriate AEC-Q100
and JEDEC test methods.
(4) Page Mode, VCC = 5V, 25°C
Doc. No. 1126 Rev. A
2 © 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
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CAT15002, CAT15004
A.C. CHARACTERISTICS (MEMORY)(1)
VCC = 2.5V to 5.5V, TA = -40°C to 85°C, unless otherwise specified.
Symbol
fSCK
tSU
tH
tWH
tWL
tLZ
tRI(2)
tFI(2)
tHD
tCD
tV
tHO
tDIS
tHZ
tCS
tCSS
tCSH
tWPS
tWPH
tWC(4)
tPU(2) (3)
Parameter
Clock Frequency
Data Setup Time
Data Hold Time
SCK High Time
SCK Low Time
H¯¯O¯L¯D¯ to Output Low Z
Input Rise Time
Input Fall Time
H¯¯O¯L¯D¯ Setup Time
H¯¯O¯L¯D¯ Hold Time
Output Valid from Clock Low
Output Hold Time
Output Disable Time
H¯¯O¯L¯D¯ to Output High Z
C¯¯S High Time
C¯¯S Setup Time
C¯¯S Hold Time
¯W¯P¯ Setup Time
¯W¯P¯ Hold Time
Write Cycle Time
Power-up to Ready Mode
Min.
DC
20
20
40
40
0
10
0
15
15
15
10
10
Notes:
(1) Test conditions according to “A.C. Test Conditions” table.
(2) Tested initially and after a design or process change that affects this parameter.
(3) tPU is the delay between the time VCC is stable and the device is ready to accept commands.
(4) tWC is the time from the rising edge of C¯¯S after a valid write sequence to the end of the internal write cycle.
Max.
10
25
2
2
40
20
25
5
1
Units
MHz
ns
ns
ns
ns
ns
µs
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ms
A.C. TEST CONDITIONS
Input Rise and Fall Times
Input Levels
Timing Reference Levels
Output Load
≤ 10ns
0.3 VCC to 0.7 VCC
0.5 VCC
Current Source: IOL max/ IOH max; CL = 50pF
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
3
Doc. No. 1126 Rev. A
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Номер в каталоге | Описание | Производители |
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CAT15004 | (CAT15002 / CAT15004) Voltage Supervisor | Catalyst Semiconductor |
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