at45db161d ATMEL Corporation, at45db161d Datasheet - Page 2

• Manufacturer Part Number: at45db161d
• Description: At45db161d 16-megabit 2.5-volt Or 2.7-volt Dataflash
• Manufacturer: ATMEL Corporation

2. Pin Configurations and Pinouts
Note:
2
Figure 2-1.
Figure 2-3.
RDY/BUSY
RESET
1. The metal pad on the bottom of the MLF package is floating. This pad can be a “No Connect” or connected to GND.
GND
VCC
SCK
AT45DB161D
WP
NC
NC
NC
NC
NC
SO
CS
SI
TSOP Top View: Type 1
MLF (VDFN) Top View
1
2
3
4
5
6
7
8
9
10
11
12
13
14
RESET
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.
SCK
CS
SI
1
2
3
4
8
7
6
5
SO
GND
VCC
WP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
Figure 2-2.
Note:
Figure 2-4.
RESET
1. See AT45DCB002D Datasheet.
SCK
CS
SI
7 6
DataFlash Card
Top View through Package
SOIC Top View
1
2
3
4
5 4 3 2 1
8
7
6
5
3500J–DFLASH–4/08
(1)
SO
GND
VCC
WP