T
T
TS
S
S3
3
32
2
2M
M
M~
~
~1
1
1G
G
GC
C
CF
F
F8
8
80
0
0
80X CompactFlash Card
Transcend Information Inc.
17
Electrical specifications shall be maintained to ensure data reliability.
Item Signal Card
10
Host
10
Control Signal
-CE1
-CE2
-REG
-IORD
-IOWR
Pull-up to V
CC
500 K R 50 K and
shall be sufficient to keep inputs inactive
when the pins are not connected at the host.
1
-OE
-WE Pull-up to V
CC
500 K R 50 K .
1,2
RESET
Pull-up to V
CC
500 K R 50 K .
1,2,9,
Status Signal
READY
-WAIT
WP
Pull-up to V
CC
R 10 K .
3
-INPACK
In PCMCIA PC Card modes Pull-up to V
CC
R 10 K .
4
In True IDE mode, if DMA operation is
supported by the host, Pull-down to
Gnd R
5.6 K .
5
PC Card / True IDE hosts switch the pull-
up
to pull down in True IDE mode if DMA
operation is supported.
The PC Card mode Pull-up may be left
active during True IDE mode if True IDE
DMA operation is not supported.
Address A[10:00]
-CSEL
Data Bus D[15:00]
1.
Card Detect -CD[2:1]
Connected to GND in the card
Voltage Sense -VS1
-VS2
Pull-up to Vcc 10 K R 100K .
Battery/Detect BVD[2:1]
Pull-up R 50 K .
3.6
Notes: 1) Control Signals: each card shall present a load to the socket no larger than 50 pF
10
at a DC current of 700 A low
state and 150 A high state, including pull-resistor. The socket shall be able to drive at least the following load
10
while meeting all AC timing requirements: (the number of sockets wired in parallel) mul tiplied by (50 pF with DC
current 700 A low state and 150 A high state per socket).
2) Resistor is optional.
3) Status Signals: the socket shall present a load to the card no larger than 50 pF
10
at a DC current of 400 A low state
and 100 A high state, including pull-up resistor. The card shall be able to drive at least the following load
10
while
meeting all AC timing requirements: 50 pF at a DC current of 400 A low state and 100 A high state.
4) Status Signals: the socket shall present a load to the card no larger than 50 pF
10
at a DC current of 400 A low state
and 100 A high state, including pull-up resistor. The card shall be able to drive at least the following load
10
while