AT24C32 ATMEL Corporation, AT24C32 Datasheet
AT24C32
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AT24C32 Summary of contents
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... 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 ...
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... 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. ...
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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 ...
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... 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 ...
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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 ...
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... Data Validity Start and Stop Definition Output Acknowledge AT24C32/64 6 ...
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... 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 ...
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... 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. ...
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Figure 6. Sequential Read 9 ...
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... AT24C32 Ordering Information t (max) I (max) I (max (ms 3000 35 3000 35 10 1500 0.5 1500 0.5 8P3 8-Lead, 0.300" Wide, Plastic Dual Inline Package (PDIP) 8S1 8-Lead, 0.150" Wide, Plastic Gull Wing Small Outline (JEDEC SOIC) 8S2 8-Lead, 0.200" Wide, Plastic Gull Wing Small Outline (EIAJ SOIC) 8T 8-Lead, 0.170" ...
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... AT24C32 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 Outline (JEDEC SOIC) 8S2 8-Lead, 0.200" Wide, Plastic Gull Wing Small Outline (EIAJ SOIC) 8T 8-Lead, 0.170" ...
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... 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 ...
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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 ...
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... 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) ...
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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 ...