CAT25C01 Datasheet, PDF (1/10 Pages) Catalyst Semiconductor – 1K/2K/4K/8K/16K SPI Serial CMOS E2PROM

Advanced Information
CAT25C01/02/04/08/16
1K/2K/4K/8K/16K SPI Serial CMOS E²PROM
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
DESCRIPTION
s 1,000,000 Program/Erase Cycles
s 100 Year Data Retention
s Self-Timed Write Cycle
s 8-Pin DIP/SOIC, 8/14-Pin TSSOP and 8-Pin MSOP
s 16/32-Byte Page Write Buffer
s Block Write Protection
– Protect 1/4, 1/2 or all of E²PROM Array
The CAT25C01/02/04/08/16 is a 1K/2K/4K/8K/16K Bit
SPI Serial CMOS E²PROM internally organized as
128x8/256x8/512x8/1024x8/2048x8 bits. Catalyst’s ad-
vanced CMOS Technology substantially reduces de-
vice power requirements. The CAT25C01/02/04 fea-
tures a 16-byte page write buffer. The 25C08/16 fea-
tures a 32-byte page write buffer.The device operates
via the SPI bus serial interface and is enabled though a
Chip Select (CS). In addition to the Chip Select, the clock
PIN CONFIGURATION
TSSOP Package (U14) SOIC Package (S)
input (SCK), data in (SI) and data out (SO) are required
to access the device. The HOLD pin may be used to
suspend any serial communication without resetting the
serial sequence. The CAT25C01/02/04/08/16 is de-
signed with software and hardware write protection
features including Block Write protection. The device is
available in 8-pin DIP, 8-pin SOIC, 8-pin MSOP and 8/
14-pin TSSOP packages.
DIP Package (P)
TSSOP Package (U)
CS 1
SO 2
NC 3
NC 4
NC 5
WP 6
V_{SS 7}
14 VCC
13 _HOLD
12 _NC
11 NC
10 _NC
9 SCK
8 SI
PIN FUNCTIONS
CS ¹
SO ²
WP ³
VSS 4
8 VCC
7 _HOLD
6 SCK
5 SI
MSOP Package (R)*
CS 1
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 _SI
*CAT 25C01/02 only
CS ¹
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 SI
CS ¹
SO 2
WP ³
VSS
4
BLOCK DIAGRAM
WORD ADDRESS
BUFFERS
8
VCC
7 _HOLD
6
SCL
5 _SI
SENSE AMPS
SHIFT REGISTERS
COLUMN
DECODERS
Pin Name
SO
SCK
WP
Function
Serial Data Output
Serial Clock
Write Protect
SO
SI
CS
WP
HOLD
SCK
I/O
CONTROL
SPI
CONTROL
LOGIC
XDEC
E²PROM
ARRAY
VCC
VSS
CS
SI
HOLD
NC
+1.8V to +6.0V Power Supply
Ground
Chip Select
Serial Data Input
Suspends Serial Input
No Connect
BLOCK
PROTECT
LOGIC
STATUS
REGISTER
DATA IN
STORAGE
HIGH VOLTAGE/
TIMING CONTROL
25C128 F02
© 1999 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
1
Doc. No. 25067-00 5/00