Input-Output Circuit Forms - Fujitsu FR60 Hardware Manual

1.6

Input-output Circuit Forms

This section describes the I/O circuit types listed in Table 1.6-1 .
■ Input-Output Circuit Types
Table 1.6-1 Input-Output Circuit Types (1 / 3)
Classification
X1
A
X0
X1A
B
X0A
C
Standby control
Circuit type
Standby control
Standby control
Pull-up control
Digital output
Digital output
Digital input
• Oscillation feedback resistor for high-
speed operation (main clock oscillation) :
About 1 MΩ
Clock input
• Oscillation feedback resistor for low-
speed operation (subclock oscillation) :
About 7 MΩ
Clock input
• CMOS level output
• CMOS level input
With standby control
With pull-up control
Pull-up resistance = about 50 kΩ (Typ)
I = 8 mA
OL
Remarks
27