Document
EEPROM Serial 128-Kb I2C
CAT24C128
Description The CAT24C128 is a EEPROM Serial 128−Kb I2C internally
organized as 16,384 words of 8 bits each. It features a 64−byte page write buffer and supports both the
Standard (100 kHz), Fast (400 kHz) and Fast−Plus (1 MHz) I2C protocol.
Write operations can be inhibited by taking the WP pin High (this protects the entire memory).
On−Chip ECC (Error Correction Code) makes the device suitable for high reliability applications.*
Features
• Supports Standard, Fast and Fast−Plus I2C Protocol • 1.8 V to 5.5 V Supply Voltage Range • 64−Byte Page Write Buffer • Hardware Write Protection for Entire Memory • Schmitt Triggers and Noise Suppression Filters on I2C Bus Inputs
(SCL and SDA)
• Low Power CMOS Technology • 1,000,000 Program/Erase Cycles • 100 Year Data Retention • Industrial and Extended Temperature Range • This Device is Pb−Free, Halogen Free/BFR Free and RoHS
Compliant**
VCC
SCL A2, A1, A0
WP
CAT24C128
SDA
VSS Figure 1. Functional Symbol
** For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.
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UDFN−8 HU4 SUFFIX CASE 517AZ
TSSOP−8 Y SUFFIX CASE 948AL
SOIC−8 W SUFFIX CASE 751BD
SOIC−8 WIDE X SUFFIX
CASE 751BE
PIN CONFIGURATION
1 A0
VCC
A1
WP
A2
SCL
VSS
SDA
SOIC (W), TSSOP (Y), UDFN (HU4)
For the location of Pin 1, please consult the corresponding package drawing.
PIN FUNCTION
Pin Name†
Function
A0, A1, A2 SDA
Device Address Inputs Serial Data Input/Output
SCL
Serial Clock Input
WP
Write Protect Input
VCC
Power Supply
VSS
Ground
†The exposed pad for the TDFN/UDFN packages can be left floating or connected to Ground.
ORDERING INFORMATION
See detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet.
© Semiconductor Components Industries, LLC, 2013
1
July, 2020 − Rev. 17
Publication Order Number: CAT24C128/D
CAT24C128
Table 1. ABSOLUTE MAXIMUM RATINGS
Parameter
Rating
Units
Storage Temperature
−65 to +150
°C
Voltage on Any Pin with Respect to Ground (Note 1)
−0.5 to +6.5
V
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. The DC input voltage on any pin should not be lower than −0.5 V or higher than VCC + 0.5 V. During transitions, the voltage on any pin may
undershoot to no less than −1.5 V or overshoot to no more than VCC + 1.5 V, for periods of less than 20 ns.
Table 2. RELIABILITY CHARACTERISTICS (Note 2)
Symbol
Parameter
Min
Units
NEND (Notes 3, 4) Endurance
1,000,000
Program / Erase Cycles
TDR
Data Retention
100
Years
2. 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.
3. Page Mode, VCC = 5 V, 25°C 4. The new product revision (C) uses ECC (Error Correction Code) logic with 6 ECC bits to correct one bit error in 4 data bytes. Therefore, when
a single byte has to be written, 4 bytes (including the ECC bits) are re−programmed. It is recommended to write by multiple of 4 bytes in order to benefit from the maximum number of write cycles.
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CAT24C128
Table 3. D.C. OPERATING CHARACTERISTICS (VCC = 1.8 V to 5.5 V, TA = −40°C to +85°C and VCC = 2.5 V to 5.5 V, TA = −40°C to +125°C, unless otherwise specified.)
Symbol
Parameter
Test Conditions
Min
Max
ICCR ICCW ISB
IL
VIL1 VIL2 VIH1 VIH2 VOL1 VOL2
Read Current Write Current Standby Current
I/O Pin Leakage
Input Low Voltage Input Low Voltage Input High Voltage Input High Voltage Output Low Voltage Output Low Voltage
Read, fSCL = 400 kHz/1 MHz
All I/O Pins at GND or VCC
Pin at GND or VCC
2.5 V ≤ VCC ≤ 5.5 V 1.8 V ≤ VCC < 2.5 V 2.5 V ≤ VCC ≤ 5.5 V 1.8 V ≤ VCC < 2.5 V VCC ≥ 2.5 V, IOL = 3.0 mA VCC < 2.5 V, IOL = 1.0 mA
TA = −40°C to +85°C TA = −40°C to +125°C TA = −40°C to +85°C TA = −40°C to +125°C
−0.5 −0.5 0.7 VCC 0.75 VCC
1 3 2 5 1 2 0.3 VCC 0.25 VCC VCC + 0.5 VCC + 0.5 0.4 0.2
Units mA mA mA
mA
V V V V V V
Table 4. PIN IMPEDANCE CHARACTERISTICS (VCC = 1.8 V to 5.5 V, TA = −40°C to +85°C and VCC = 2.5 V to 5.5 V, TA = −40°C to +125°C, unless otherwise specified.)
Symbol
Parameter
Conditions
Max
Units
CIN (Note 5)
SDA I/O Pin Capacitance
VIN = 0 V
8
pF
CIN (Note 5)
Input Capacitance (other pins)
VIN = 0 V
6
pF
IWP, IA (Note 6)
WP Input Current, Address Input Current (A0, A1, A2)
VIN < VIH, VCC = 5.5 V VIN < VIH, VCC = 3.3 V
75
mA
50
VIN < VIH, VCC = 1.8 V
25
VIN > VIH
2
5. 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.
6. W.