Z8S18020FEC Zilog, Z8S18020FEC Datasheet - Page 19

• Manufacturer Part Number: Z8S18020FEC
• Description: IC Z180 MPU 80-QFP
• Manufacturer: Zilog

Specifications of Z8S18020FEC

• Processor Type: Z180
• Features: Enhanced Z180
• Speed: 20MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 80-BQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3103

ZiLOG
When
the timing of the Z80. The
as a result of the rising edge of T2. (Figure 12.)
Z8S180/Z8L180 can operate in seven modes with respect
to activity and power consumption:
Normal Operation
)
Mode
=
Mode
Mode
0
Mode
, the timing of the
Mode (with or without
Mode
and
and
signals go active
T h e
signals match
cessor is fetching and running a program. All enabled func-
tions and portions of the device are active, and the
pin is High.
tion. Thereafter, the Z8S180/Z8L180 processor continually
fetches the following opcode but does not execute it and
drives the
and
external Masters, and DRAM refresh can occur, and all on-
chip I/O devices continue to operate including the DMA
channels.
pin remain Active. Interrupts and bus granting to
This mode is entered by the
,
In this state, the Z8S180/Z8L180 pro-
and
pins all Low. The oscillator
instruc-