AT93C46DN-SH-T EEPROM IC SOIC-8 Narrow 3 Wire Microwire Interface Electronic IC Chip

AT93C46DN-SH-T Electrically Erasable Programmable Memory Electronics Parts semiconductor chip electronic

Features

l Low-voltage Operation

̶ VCC = 1.8V to 5.5V

l User-selectable Internal Organization

̶ 1K: 128 x 8 or 64 x 16

l 3-wire Serial Interface

l 2MHz Clock Rate (5V)

l Self-timed Write Cycle (5ms Max)

l High Reliability

̶ Endurance: 1,000,000 Write Cycles

̶ Data Retention: 100 Years

l 8-lead JEDEC SOIC, 8-lead TSSOP, 8-pad UDFN, 8-lead PDIP, and 8-ball VFBGA Packages.

Description

The Atmel^® AT93C46D provides 1,024 bits of Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) organized as 64 words of 16 bits each (when the ORG pin is connected to VCC) and 128 words of 8 bits each (when the ORG pin is tied to ground). The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential. The AT93C46D is available in space-saving 8-lead JEDEC SOIC,

8-lead TSSOP, 8-pad UDFN, 8-lead PDIP, and 8-ball VFBGA packages.

The AT93C46D is enabled through the Chip Select pin (CS) and accessed via a 3-wire serial interface consisting of Data Input (DI), Data Output (DO), and Shift Clock (SK). Upon receiving a Read instruction at DI, the address is decoded, and the data is clocked out serially on the DO pin. The write cycle is completely

self-timed, and no separate erase cycle is required before Write. The write cycle is only enabled when the part is in the Erase/Write Enable state. When CS is brought high following the initiation of a write cycle, the DO pin outputs the Ready/Busy status of the part.

The AT93C46D operates from 1.8V to 5.5V.

Pin Configurations and Pinouts

Table 1-1. Pin Configurations

Memory Organization

Table1. Pin Capacitance⁽¹⁾

Applicable over recommended operating range from TA = 25°C, f = 1.0MHz, VCC = 1.8V (unless otherwise noted).

Note: 1. This parameter is characterized, and is not 100% tested.

1.1 DC Characteristics

Table 2. DC Characteristics

Applicable over recommended operating range from TAI = -40°C to +85°C, VCC = 1.8V to 5.5V (unless otherwise noted).

Note: 1. VIL min and VIH max are reference only, and are not tested.

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