CAT25C03 Datasheet, PDF (1/10 Pages) Catalyst Semiconductor – 2K/4K/8K/16K/32K SPI Serial CMOS E2PROM

Advanced
CAT25C03/05/09/17/33
2K/4K/8K/16K/32K 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, 16-Pin SOIC and 14-Pin TSSOP
s Page Write Buffer
s Write Protection
– Protect First Page, Last Page, Any 1/4 Array
or Lower 1/2 Array
The CAT25C03/05/09/17/33 is a 2K/4K/8K/16K/32K-Bit
SPI Serial CMOS E²PROM internally organized as
256x8/512x8/1024x8/2048x8/4096x8 bits. Catalyst’s
advanced CMOS Technology substantially reduces de-
vice power requirements. The CAT25C03/05 features a
16-byte page write buffer. The 25C09/17/33 features 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
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 CAT25C03/05/09/17/33 is de-
signed with software and hardware write protection
features. The device is available in 8-pin DIP, 8-pin
SOIC, 16-pin SOIC, 8-pin TSSOP and 14-pin TSSOP
packages.
TSSOP Package (U14) SOIC Package (S16) ^{SOIC Package (S)} 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
CS
1
SO 2
NC 3
NC 4
NC 5
NC 6
WP 7
V_SS 8
16 VCC
CS ¹
15 HOLD SO ²
14 NC
WP ³
13 NC
VSS 4
12 NC
11 NC
10 SCK
9 SI
8 VCC _CS 1
8
VCC _CS
1
8
7 _{HOLD SO 2}
7
HOLD _SO
2
7
6 SCK _{WP 3}
6
SCK _WP 3
6
5
SI _VSS
4
5
SI VSS
4
5
BLOCK DIAGRAM
SENSE AMPS
SHIFT REGISTERS
VCC
HOLD
SCL
SI
PIN FUNCTIONS
Pin Name
Function
SO
Serial Data Output
SCK
WP
Serial Clock
Write Protect
VCC
+1.8V to +6.0V Power Supply
VSS
Ground
CS
Chip Select
SI
HOLD
Serial Data Input
Suspends Serial Input
NC
No Connect
© 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
SO
SI
CS
WP
HOLD
SCK
1
WORD ADDRESS
BUFFERS
COLUMN
DECODERS
I/O
CONTROL
SPI
CONTROL
LOGIC
BLOCK
PROTECT
LOGIC
STATUS
REGISTER
XDEC
E²PROM
ARRAY
DATA IN
STORAGE
HIGH VOLTAGE/
TIMING CONTROL
25C128 F02
Doc. No. 25068-00 2/98