N24S128
128 Kb I2C CMOS Serial
EEPROM with Software
Write Protect and
Programmable Device
Address
www.onsemi.com
Description
The N24S128 is a 128 Kb Serial CMOS EEPROM, internally
organized as 816,384 words of 8 bits each.
WLCSP−4
C4 SUFFIX
CASE 567VY
They feature a 64-byte page write buffer and support both the
2
Standard (100 kHz), Fast (400 kHz) and Fast-Plus (1 MHz) I C
protocol.
PIN CONFIGURATION
The devices also feature a 128-bit factory-set read-only Unique ID,
a 64-byte Secure Data Page that can be permanently locked against
future changes, and Software Write Protection of the entire array.
A Device Configuration Register enables the user to specify the last
3 bits of the Device Address, allowing up to eight N24S128 devices to
be addressed on the same bus.
1
2
A
B
V
SCL
CC
SDA
V
SS
Features
(Top View)
2
• Supports Standard, Fast and Fast-Plus I C Protocol
• 1.7 V to 5.5 V Supply Voltage Range
• 64-byte Page Write Buffer
PIN FUNCTION
Pin Name
SDA
Function
• Lockable Secure Data Page
• User Programmable Write Protection
• User Programmable Device Address
Serial Data Input/Output
Serial Clock Input
Power Supply
SCL
2
V
CC
• Schmitt Triggers and Noise Suppression Filters on I C Bus Inputs
V
SS
Ground
(SCL and SDA)
• Low Power CMOS Technology
• 1,000,000 Program/Erase Cycles
• 100 Year Data Retention
MARKING DIAGAM
X
YW
• Industrial Temperature Range: −40°C to +85°C
• Ultra-thin 4-ball WLCSP Package
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant*
X
= Specific Device Code
(See Ordering Information Table)
= Production Year (Last Digit)
= Production Week Code
Y
W
V
CC
ORDERING INFORMATION
See detailed ordering and shipping information on page 9 of
this data sheet.
N24S128
SCL
SDA
*For additional information on our Pb−Free strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
V
SS
Figure 1. Functional Symbol
© Semiconductor Components Industries, LLC, 2017
1
Publication Order Number:
April, 2019 − Rev. 2
N24S128/D