AT24C32-10SC ATMEL [ATMEL Corporation], AT24C32-10SC Datasheet

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AT24C32-10SC

Manufacturer Part Number
AT24C32-10SC
Description
2-Wire Serial EEPROM
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
Features
Description
The AT24C32/64 provides 32,768/65,536 bits of serial electrically erasable and pro-
grammable read only memory (EEPROM) organized as 4096/8192 words of 8 bits
each. The device’s cascadable feature allows up to 8 devices to share a common 2-
wire bus. The device is optimized for use in many industrial and commercial applica-
tions where low power and low voltage operation are essential. The AT24C32/64 is
available in space saving 8-pin JEDEC PDIP, 8-pin and 14-pin JEDEC SOIC, 8-pin
EIAJ SOIC, and 8-pin TSSOP packages and is accessed via a 2-wire serial interface.
In addition, the entire family is available in 5.0V (4.5V to 5.5V), 2.7V (2.7V to 5.5V),
2.5V (2.5V to 5.5V) and 1.8V (1.8V to 5.5V) versions.
Pin Configurations
GND
Pin Name
A0 to A2
SDA
SCL
WP
NC
NC
NC
Low-Voltage and Standard-Voltage Operation
Low-Power Devices (I
Internally Organized 4096 x 8, 8192 x 8
2-Wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Compatibility
Write Protect Pin for Hardware Data Protection
32-Byte Page Write Mode (Partial Page Writes Allowed)
Self-Timed Write Cycle (10 ms max)
High Reliability
Automotive Grade and Extended Temperature Devices Available
8-Pin JEDEC PDIP, 8-Pin and 14-Pin JEDEC SOIC, 8-Pin EIAJ SOIC,
and 8-pin TSSOP Packages
A0
A1
A2
– 5.0 (V
– 2.7 (V
– 2.5 (V
– 1.8 (V
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
– ESD Protection: >3,000V
1
2
3
4
5
6
7
14-Pin SOIC
CC
CC
CC
CC
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
= 4.5V to 5.5V)
= 2.7V to 5.5V)
= 2.5V to 5.5V)
= 1.8V to 5.5V)
14
13
12
11
10
9
8
SB
NC
VCC
WP
NC
SCL
SDA
NC
= 2 A @ 5.5V) Available
GND
GND
A0
A1
A2
A0
A1
A2
GND
A0
A1
A2
8-Pin TSSOP
1
2
3
4
1
2
3
4
8-Pin PDIP
8-Pin SOIC
1
2
3
4
8
7
6
5
8
7
6
5
8
7
6
5
VCC
WP
SCL
SDA
VCC
WP
SCL
SDA
VCC
WP
SCL
SDA
2-Wire
Serial EEPROM
32K (4096 x 8)
64K (8192 x 8)
AT24C32
AT24C64
2-Wire, 32K
Serial E
2
PROM
Rev. 0336F–08/98
1

Related parts for AT24C32-10SC

AT24C32-10SC Summary of contents

Page 1

... The device’s cascadable feature allows devices to share a common 2- wire bus. The device is optimized for use in many industrial and commercial applica- tions where low power and low voltage operation are essential. The AT24C32/64 is available in space saving 8-pin JEDEC PDIP, 8-pin and 14-pin JEDEC SOIC, 8-pin EIAJ SOIC, and 8-pin TSSOP packages and is accessed via a 2-wire serial interface ...

Page 2

... CC (8/16K bits) of memory are inhibited. If left unconnected internally pulled down to GND. Memory Organization AT24C32/64, 32K/64K SERIAL EEPROM: The 32K/64K is internally organized as 256 pages of 32 bytes each. Ran- dom word addressing requires a 12/13 bit data word address. ...

Page 3

Pin Capacitance Applicable over recommended operating range from T Symbol Test Condition C Input/Output Capacitance (SDA) I/O C Input Capacitance (A IN Note: 1. This parameter is characterized and is not 100% tested. DC Characteristics Applicable over recommended operating ...

Page 4

... EEPROM in 8-bit words. The EEPROM sends a zero during the ninth clock cycle to acknowledge that it has received each word. STANDBY MODE: The AT24C32/64 features a low power standby mode which is enabled: a) upon power-up and b) after the receipt of the STOP bit and the completion of any internal operations ...

Page 5

Bus Timing SCL: Serial Clock, SDA: Serial Data I/O Write Cycle Timing SCL: Serial Clock, SDA: Serial Data I/O Note: 1. The write cycle time t WR cycle the time from a valid stop condition of a write ...

Page 6

... Data Validity Start and Stop Definition Output Acknowledge AT24C32/64 6 ...

Page 7

... SDA and SCL pins prevent small noise spikes from activating the device. A low-V CC resets the device to prevent data corruption in a noisy envi- ronment. DATA SECURITY: The AT24C32/64 has a hardware data protection scheme that allows the user to write protect the upper quadrant (8/16K bits) of memory when the WP pin ...

Page 8

... DON’T CARE bits Figure 4. Current Address Read Figure 5. Random Read Note DON’T CARE bits AT24C32/64 8 tinue. The sequential read operation is terminated when the microcontroller does not respond with a zero but does generate a following stop condition (refer to Figure 6). 2. ...

Page 9

Figure 6. Sequential Read 9 ...

Page 10

... Ordering Code 400 AT24C32-10PC AT24C32N-10SC AT24C32W-10SC AT24C32-10TC AT24C32-10SC 400 AT24C32-10PI AT24C32N-10SI AT24C32W-10SI AT24C32-10TI AT24C32-10SI 100 AT24C32-10PC-2.7 AT24C32N-10SC-2.7 AT24C32W-10SC-2.7 AT24C32-10TC-2.7 AT24C32-10SC-2.7 100 AT24C32-10PI-2.7 AT24C32N-10SI-2.7 AT24C32W-10SI-2.7 AT24C32-10TI-2.7 AT24C32-10SI-2.7 Package Type Options Package Operation Range 8P3 Commercial 8S1 ( 8S2 8T 14S 8P3 ...

Page 11

... Ordering Code 0.5 100 AT24C32-10PC-2.5 AT24C32N-10SC-2.5 AT24C32W-10SC-2.5 AT24C32-10TC-2.5 AT24C32-10SC-2.5 0.5 100 AT24C32-10PI-2.5 AT24C32N-10SI-2.5 AT24C32W-10SI-2.5 AT24C32-10TI-2.5 AT24C32-10SI-2.5 0.1 100 AT24C32-10PC-1.8 AT24C32N-10SC-1.8 AT24C32W-10SC-1.8 AT24C32-10TC-1.8 AT24C32-10SC-1.8 0.1 100 AT24C32-10PI-1.8 AT24C32N-10SI-1.8 AT24C32W-10SI-1.8 AT24C32-10TI-1.8 AT24C32-10SI-1.8 Package Type Options Package Operation Range 8P3 Commercial ( 8S1 8S2 8T 14S 8P3 Industrial ...

Page 12

... Wide, Plastic Gull Wing Small Outline (TSSOP) 14S 14-Lead, 0.150" Wide, Plastic Gull Wing Small Outline (SOIC) Blank Standard Operation (4.5V to 5.5V) -2.7 Low Voltage (2.7V to 5.5V) -2.5 Low Voltage (2.5V to 5.5V) -1.8 Low Voltage (1.8V to 5.5V) AT24C32/ MAX (kHz) Ordering Code 400 AT24C64-10PC AT24C64N-10SC AT24C64W-10SC AT24C64-10TC AT24C64-10SC 400 ...

Page 13

AT24C64 Ordering Information (Continued) t (max) I (max (ms 1000 1000 10 800 800 8P3 8-Lead, 0.300" Wide, Plastic Dual Inline Package (PDIP) 8S1 8-Lead, 0.150" Wide, Plastic Gull Wing Small ...

Page 14

... REF REF 8 8 .035 (.889) .035 (.889) .020 (.508) .020 (.508) AT24C32/64 14 8S1, 8-Lead, 0150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC) Dimensions in Inches and (Millimeters) .280 (7.11) .240 (6.10) .037 (.940) .027 (.690) .015 (.380) MIN .022 (.559) ...

Page 15

Packaging Information 14S, 14-Lead, 0.150" Wide, Plastic Gull Wing Small Outline (SOIC) Dimensions in Inches and (Millimeters) .020 (.508) .013 (.330) .158 (4.01) .152 (3.86) PIN 1 .050 (1.27) BSC .344 (8.74) .337 (8.56) .010 (.249) .004 (.102) 0 REF ...

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