FEDL22660-01
ML22660
Pin
Symbol
I/O
Attribute
Description
Initial
value
*1
28
RESETB
I
Negative
Reset input pin.
The LSI is initialized by the "L" level input. After a reset is input, all the
circuits stop operating and enter the power-down state.
At power-on, input an "L" level to this pin. After the power supply
voltage stabilizes, set this pin to an "H" level.
A pull-up resistor is internally connected.
(
*2
)
29
TEST0
I
Positive
Input pin for testing.
A pull-down resistor is internally connected.
Fix to the DGND.
L
30
STATUS1
O
-
Status/error output pin 1.
Execute OUTSTAT command to select BUSYB
*3
and NCR
*3
in each
channel, or errors.
The initial value is BUSYB
*3
of channel 0, and output data is "H" level.
H
31
STATUS2
O
-
Status/error output pin 2.
Execute OUTSTAT command to select BUSYB
*3
and NCR
*3
in each
channel, or errors.
The initial value is BUSYB
*3
of channel 0, and output data is "H" level.
H
32
CBUSYB
O
Negative
Command processing status signal output pin.
An "L" level is output during command processing.
Be sure to input a command with this pin at an "H" level.
(
*2
)
2,8,
15,25
N.C.
-
-
Unused pin.
Leave open.
Hi-Z
*1 Initial value at reset input and power-down. The pin whose IO is "I" indicates a fixed level from outside.
*2 "L" at reset, "H" at power-down
*3 For NCR, BUSYB, refer to the description of "RDSTAT command".
■
Termination of Unused Pins
This section explains how to terminate unused pins.
Symbol
Recommended pin termination
EROFF
Connect to the DGND.
XT
Leave open.
XTB
AIN
Connect to the SPGND.
TEST0
Connect to the DGND.
N.C.
Leave open.
SO
SPM
STATUS1
STATUS2
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Summary of Contents for LAPIS Semiconductor ML22660
Page 107: ...FEDL22660 01 ML22660 107 116 ...
