AT45DB161D datasheet(2/53 Pages) ATMEL

2 / 53 page

3500J–DFLASH–4/08

AT45DB161D

address lines and a parallel interface, the DataFlash uses a RapidS serial interface to sequen-

tially access its data. The simple sequential access dramatically reduces active pin count,

facilitates hardware layout, increases system reliability, minimizes switching noise, and reduces

package size. The device is optimized for use in many commercial and industrial applications

where high-density, low-pin count, low-voltage and low-power are essential.

To allow for simple in-system reprogrammability, the AT45DB161D does not require high input

voltages for programming. The device operates from a single power supply, 2.5V to 3.6V or 2.7V

to 3.6V, for both the program and read operations. The AT45DB161D is enabled through the

chip select pin (CS) and accessed via a three-wire interface consisting of the Serial Input (SI),

Serial Output (SO), and the Serial Clock (SCK).

All programming and erase cycles are self-timed.

Pin Configurations and Pinouts

Note:

1. The metal pad on the bottom of the MLF package is floating. This pad can be a “No Connect” or connected to GND.

Figure 2-1.

TSOP Top View: Type 1

Figure 2-2.

DataFlash Card(1)

Top View through Package

Note:

1. See AT45DCB002D Datasheet.

Figure 2-3.

MLF (VDFN) Top View

Figure 2-4.

SOIC Top View

RDY/BUSY

RESET

VCC

GND

SCK

76 54321

SCK

RESET

GND

VCC

SCK

RESET

GND

VCC

AT45DB161D Datasheet(PDF) 2 Page - ATMEL Corporation