Rainbow Electronics AT45DB081D - Manual (Page 2)

2
3596N–DFLASH–11/2012
AT45DB081D
address lines and a parallel interface, the Adesto ™ DataFlash ® uses a RapidS serial interface to
sequentially 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 appli-
cations where high-density, low-pin count, low-voltage and low-power are essential.
To allow for simple in-system reprogrammability, the AT45DB081D 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 AT45DB081D 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.
2. 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. MLF (VDFN) Top View
Figure 2-2. SOIC Top View
SI
SCK
RESET
CS
SO
GND
VCC
WP
8
7
6
5
1
2
3
4
1
2
3
4
8
7
6
5
SI
SCK
RESET
CS
SO
GND
VCC
WP