z86c9216vsc ZiLOG Semiconductor, z86c9216vsc Datasheet - Page 60

• Manufacturer Part Number: z86c9216vsc
• Description: Ir Microcontroller
• Manufacturer: ZiLOG Semiconductor

FUNCTIONAL DESCRIPTION (Continued)
Z86C72/C92/L72/L92
IR Microcontroller
Mask Selectable Options. There are six Mask Selectable
Options to choose from based on ROM code require-
ments. (See Table 7).
Permanent Watch-Dog
Timer
RAM Protect
RC/Other
32 kHz XTAL
Port 04-07 Pull-ups
Port 00-03 Pull-ups
Port 31-33 Pull-ups
Port 20-27 Pull-ups
Port 3 Mouse Mode 0.4 V
Trip
Low Voltage Detection/Standby. An on-chip Voltage
Comparator checks that the V
correct operation of the device. Reset is globally driven
when V
V
crystal or resonator clock. Typical Low-Voltage power con-
sumption in this Low Voltage Standby mode (I
45 A (varying with the number of Mask selectable options
enabled). If the V
RAM content is preserved. When the power level is re-
turned to above V
function normally (Figure 45).
The minimum operating voltage varies with the tempera-
ture and operating frequency, while V
perature only.
6-60
CC
causes the XTAL1 and XTAL2 circuitry to stop the
CC
Table 7. Mask Selectable Options
Option
falls below V
CC
LV
, the device will perform a POR and
is allowed to stay above V
LV
DD
(Vrf1). A small further drop in
On/WDT command invoked
On/Off
RC/XTAL
On/Off
On/Off
On/Off
On/Off
On/Off
On/Off
CC
is at the required level for
Function
LV
varies with tem-
LV
) is about
P R E L I M I N A R Y
RAM
, the
The Low Voltage trip voltage (V
the following conditions:
Maximum (V
T
than 4.0 MHz
Note: The internal clock frequency is one-half the external
clock frequency.
A
= 0 C, +55 C Internal clock frequency equal to or less
Figure 44. Typical Z86L/CX2 Low Voltage vs
1.6
1.4
0.4
0.2
1.8
1.2
1.8
0.6
0
1
0
LV
) Conditions:
15
Temperature at 8 MHz
Temperature
25
35
LV
) is less than 2.1V under
45
DS97LVO0900
55
VLV
Zilog