PMC
CONNECTION DIAGRAMS
Pm25LV512/010
CE#
SO
WP#
GND
1
2
3
4
8
7
6
5
Vcc
HOLD#
SCK
SI
CE#
SO
WP#
GND
1
2
3
4
8
Vcc
HOLD#
SCK
SI
Top View
7
6
5
8-Pin SOIC
8-Contact WSON
PIN DESCRIPTIONS
SYMB OL
TYPE
D ESC R IPTION
C hi p Enable: C E# goes low acti vates the devi ce's i nternal ci rcui tri es for
devi ce operati on. C E# goes hi gh deselects the devi ce and swi tches i nto
standby mode to reduce the power consumpti on. When the devi ce i s not
selected, data wi ll not be accepted vi a the seri al i nput pi n (Sl), and the
seri al output pi n (SO) wi ll remai n i n a hi gh i mpedance state.
Seri al D ata C lock
Seri al D ata Input
Seri al D ata Output
Ground
D evi ce Power Supply
INPUT
INPUT
Wri te Protect: When the WP# pi n brought to low and WPEN bi t i s "1", all
wri te operati ons to the status regi ster are i nhi bi ted.
Hold: Pause seri al communi cati on wi th the master devi ce wi thout
resetti ng the seri al sequence.
C E#
INPUT
SC K
SI
SO
GND
V cc
WP#
HOLD #
INPUT
INPUT
OUTPUT
Programmable Microelectronics Corp.
2
Issue Date: December, 2003, Rev: 1.3
PMC [ PMC-SIERRA, INC ]
