Z8L18020VSC Zilog, Z8L18020VSC Datasheet - Page 52

• Manufacturer Part Number: Z8L18020VSC
• Description: IC 20MHZ LOW PWR S180 68-PLCC
• Manufacturer: Zilog

Specifications of Z8L18020VSC

• Processor Type: Z80
• Features: Enhanced DMA Support
• Speed: 20MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 68-LCC (J-Lead)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

the programmer can double the internal clock speed from
the speed of the external clock. This feature only operates
effectively with frequencies of 10–16 MHz (20–32 MHz in-
ternal). When this bit is set to
operates in normal mode. At power-up, this feature is dis-
abled.
0
, the Z8S180/Z8L180 device
When this bit is set to
1
,
ables the low-noise option for the
This option reduces the gain in addition to reducing the out-
put drive capability to 30% of its original drive capability.
The Low Noise Crystal Option is recommended in the use
of crystals for PCMCIA applications, where the crystal may
be driven too hard by the oscillator. Setting this bit to
selected for normal operation of the
The default for this bit is
Operating restrictions for device operation are listed be-
low. If a low-noise option is required, and normal device
operation is required, use the clock multiplier feature.
0
.
Setting this bit to
and
and
ZiLOG
1
pins.
pins.
0
en-
is