鈩?/div>
Serial EEPROM
FEATURES
鈥?Single supply with operation down to 2.5V
鈥?Low power CMOS technology
- 1 mA active current typical
- 10
碌A(chǔ)
standby current typical at 5.5V
- 5
碌A(chǔ)
standby current typical at 3.0V
鈥?Organized as eight blocks of 256 bytes
(8 x 256 x 8)
鈥?2-wire serial interface bus, I
2
C鈩?compatible
鈥?Functional address inputs for cascading up to
8 devices
鈥?Schmitt trigger, filtered inputs for noise
suppression
鈥?Output slope control to eliminate ground bounce
鈥?100 kHz (2.5V) and 400 kHz (5V) compatibility
鈥?Self-timed write cycle (including auto-erase)
鈥?Page-write buffer for up to 16 bytes
鈥?2 ms typical write cycle time for page-write
鈥?Hardware write protect for entire memory
鈥?Can be operated as a serial ROM
鈥?Factory programming (QTP) available
鈥?ESD protection > 4,000V
鈥?1,000,000 Erase/Write cycles guaranteed
鈥?Data retention > 200 years
鈥?8-pin DIP, 8-lead SOIC packages
鈥?Available temperature ranges:
- Commercial (C):
0擄C to +70擄C
- Industrial (I):
-40擄C to +85擄C
PACKAGE TYPES
PDIP
A0
A1
A2
V
SS
1
24LC164
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
SOIC
A0
A1
A2
V
SS
1
24LC164
2
3
4
8
7
6
5
V
CC
WP
SCL
SDA
BLOCK DIAGRAM
WP
A2 A1 A0
HV GENERATOR
I/O
CONTROL
LOGIC
MEMORY
CONTROL
LOGIC
XDEC
EEPROM ARRAY
(8 x 256 x 8)
PAGE LATCHES
DESCRIPTION
The Microchip Technology Inc. 24LC164 is a cascad-
able 16 Kbit Electrically Erasable PROM (EEPROM).
The device is organized as eight blocks of 256 x 8-bit
memory with a 2-wire serial interface. Low voltage
design permits operation down to 2.5 volts with standby
and active currents of only 5
碌A(chǔ)
and 1 mA respectively.
The 24LC164 also has a page-write capability for up to
16 bytes of data. The 24LC164 is available in the stan-
dard 8-pin DIP and 8-lead surface mount SOIC pack-
ages.
The three select pins, A0, A1 and A2, function as chip
select inputs and allow up to eight devices to share a
common bus, for up to 128 Kbits total system
EEPROM.
I
2
C is a trademark of Philips Corporation.
SDA
SCL
YDEC
V
CC
V
SS
SENSE AMP
R/W CONTROL
錚?/div>
2001 Microchip Technology Inc.
DS21093H-page 1
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