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  Holtek Semiconductor Electronic Components Datasheet  

HT24LC32 Datasheet

CMOS 32K 2-Wire Serial EEPROM

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HT24LC32
CMOS 32K 2-Wire Serial EEPROM
Features
• Operating voltage:
1.8V~5.5V for temperature -40°C to +85°C
• Low power consumption
–– Operation: 5mA max.
–– Standby: 3μA max.
• Internal organization: 4096×8
• 2-wire serial interface
• Write cycle time: 5ms max.
• Automatic erase-before-write operation
• Partial page write allowed
• 32-byte Page Write Mode
• Write operation with built-in timer
• Hardware controlled write protection
• 40-year data retention
• 106 rewrite cycles per word
• 8-pin DIP/SOP package
General Description
The HT24LC32 is a 32K-bit 2-wire serial read/write
non-volatile memory device using the CMOS floating
gate process. Its 32768 bits of memory are organized
into 4096 words and 8 bits per word. The device is
optimized for use in many industrial and commercial
applications where low power and low voltage
operation are essential. Up to eight HT24LC32
devices may be connected to the same two-wire bus.
The HT24LC32 has high reliability endurance of 1M
erase/write cycles and 40-year data retention.
Block Diagram
SCL
I/O
C o n tro l
S D A L o g ic
M e m o ry
WP
C o n tro l
L o g ic
A 0~A 2
VCC
VSS
A d d re s s
C o u n te r
H V P um p
X
D EEPRO M
E A rra y
C
P a g e B u ffe r
YDEC
S ense A M P
R /W C o n tro l
Pin Assignment
A0 1
A1 2
A2 3
VSS 4
8 VCC
7 WP
6 SCL
5 SDA
H T24LC 32
8 D IP -A /S O P -A
Pin Description
Pin Name
A0~A2
SDA
SCL
WP
VSS
VCC
I/O Description
I Address inputs
I/O Serial data
I Serial clock input
I Write protect
— Negative power supply, ground
— Positive power supply
Rev. 1.50
1 May 14, 2018


  Holtek Semiconductor Electronic Components Datasheet  

HT24LC32 Datasheet

CMOS 32K 2-Wire Serial EEPROM

No Preview Available !

HT24LC32
Absolute Maximum Ratings
Supply Voltage .......................... VSS−0.3V to VSS+6.0V
Input Voltage............................. VSS−0.3V to VCC+0.3V
Storage Temperature............................−50°C to 125°C
Operating Temperature..........................−40°C to 85°C
Note: These are stress ratings only. Stresses exceeding the range specified under ″Absolute Maximum Ratings″
may cause substantial damage to the device. Functional operation of this device at other conditions beyond
those listed in the specification is not implied and prolonged exposure to extreme conditions may affect
device reliability.
D.C. Characteristics
Symbol
Parameter
VCC Operating Voltage
ICC1 Operating Current
ICC2 Operating Current
VIL Input Low Voltage
VIH Input High Voltage
VOL Output Low Voltage
ILI
Input Leakage Current
(A0~A2, SCL, SDA)
ILO Output Leakage Current
ISTB Standby Current
CIN
COUT
Input Capacitance (See Note)
Output Capacitance (See Note)
Test Conditions
VCC Conditions
— -40°C to +85°C
5V Read at 400kHz
5V Write at 400kHz
——
——
2.4V IOL=2.1mA
1.8V IOL=0.7mA
Min.
1.8
-0.45
0.7VCC
5V VIN=0 or VCC
5V
5V
1.8V
VOUT=0 or VCC
VIN=0 or VCC
SDA, SCL=VCC
A0, A1, A2, WP=VSS
VIN=0 or VCC
SDA, SCL=VCC
A0, A1, A2, WP=VSS
f=1MHz, 25°C
f=1MHz, 25°C
Note: These parameters are periodically sampled but not 100% tested.
Typ.
Ta=-40°C~+85°C
Max. Unit
5.5
2
5
0.3VCC
VCC+0.5
0.4
0.2
1
1
3
1
2
1
6
8
V
mA
mA
V
V
V
V
μA
μA
μA
μA
μA
μA
pF
pF
Rev. 1.50
2 May 14, 2018


Part Number HT24LC32
Description CMOS 32K 2-Wire Serial EEPROM
Maker Holtek Semiconductor
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HT24LC32 Datasheet PDF






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