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PDF Z86L78 Data sheet ( Hoja de datos )
| Número de pieza | Z86L78 | |
| Descripción | IR/Low-Voltage Microcontroller | |
| Fabricantes | Zilog. | |
| Logotipo |  |
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PRODUCT SPECIFICATION
1
Z86L78
1
IR/LOW-VOLTAGE MICROCONTROLLER
FEATURES
ROM
RAM*
Voltage
Part (KB) (Bytes) I/O Range
Z86L78
16
493 16 2.0V to 3.9V
Note: *General-Purpose
s Low Power Consumption: 40 mW (Typical)
s Three Standby Modes (Typical)
– STOP - 2 µA
– HALT - 0.8 mA
– Low Voltage (<VLv)
s Programmable Watch-Dog/Power-On Reset Circuits
s All Digital Inputs are CMOS Levels
s Five Priority Interrupts
– Three External
– Two Assigned to Counter/Timers
s Two Independent Comparators with Programmable
Interrupt Polarity
s On-Chip Oscillator that Accepts a Crystal, Ceramic
Resonator, LC, RC (Mask Selectable), or External Clock
Drive
s Mask Selectable Option to Enable 32 kHz Crystal
Operation
s Special Architecture to Automate Both Generation and
Reception of Complex Pulses or Signals:
– One Programmable 8-Bit Counter/Timer with Two
Capture Registers
– One Programmable 16-Bit Counter/Timer with
One Capture Register
– Programmable Input Glitch Filter for Pulse
Reception
s Mask-Selectable 200 KOhm Pull-Ups on Ports 0, 2, 3:
– All Eight Port 2 Bits Individually Selected
– Pull-Ups Automatically Disabled Upon Selecting
an Output.
GENERAL DESCRIPTION
Zilog's Z86L78 is a low-voltage microcontroller, a member
of the IR (Infrared) Family, with 16 KB of ROM and 493
bytes of general-purpose RAM. Manufactured in CMOS
technology and offered in 20-pin DIP or SOIC styles pack-
ages, this cost-effective, low power consumption ROM-
based device offers fast execution, efficient use of memo-
ry, sophisticated interrupts, input/output bit manipulation
capabilities, automated pulse generation/reception, and
easy hardware/software system expansion.
The Z86L78 architecture is based on Zilog's 8-bit micro-
controller core, with an Expanded Register File to allow ac-
cess to register mapped peripherals, I/O circuits, and pow-
erful counter/timer circuitry. The Z86L78 offers a flexible
I/O scheme, an efficient register and address space struc-
ture, and a number of ancillary features that are useful in
many consumer, automotive, computer peripheral, and
battery operated hand-held applications.
For applications demanding powerful I/O capabilities, the
Z86L78 provides 16 pins dedicated to input and output.
These lines are grouped into three ports, which are config-
urable under software control to provide timing, status sig-
nals and parallel I/O.
There are four basic address spaces available to support a
wide range of configurations: Program Memory, Register
File, Expanded Register File, and Extended Data RAM.
DS97LVO0701
2-1
1 page  
Zilog
ABSOLUTE MAXIMUM RATINGS
Symbol
Description
Min
VCC
TSTG
TA
Supply Voltage (*)
Storage Temp.
Oper. Ambient
Temp.
–0.3
–65°
Note:
* Voltage on all pins with respect to Ground.
† See Ordering Information.
Max
+7.0
+150°
†
Units
V
C
C
Z86L78
IR/Low-Voltage Microcontroller
Stresses greater than those listed under Absolute Maxi-
mum Ratings may cause permanent damage to the de-
vice. This is a stress rating only; operation of the device at
any condition above those indicated in the operational sec-
tions of these specifications is not implied. Exposure to ab-
solute maximum rating conditions for an extended period
may affect device reliability.
1
STANDARD TEST CONDITIONS
The characteristics listed below apply for standard test
conditions as noted. All voltages are referenced to
Ground. Positive current flows into the referenced pin (Fig-
ure 4).
From Output
Under Test
I 150 pF
Figure 4. Test Load Diagram
CAPACITANCE
TA = 25°C, VCC = GND = 0V, f = 1.0 MHz, unmeasured pins returned to Ground.
Parameter
Input capacitance
Output capacitance
I/O capacitance
Min
0
0
0
Max
12 pF
12 pF
12 pF
DS97LVO0701
2-5
5 Page 
Zilog
AC CHARACTERISTICS
Preliminary
Additional Timing Table
Z86L78
IR/Low-Voltage Microcontroller
No Symbol
Parameter
TA = 0°C to +70°C
8.0 MHz
VCC Min Max
1 TpC
2 TrC,TfC
3 TwC
4 TwTinL
Input Clock Period
Clock Input Rise
and Fall Times
Input Clock Width
Timer Input
Low Width
2.0V
3.9V
2.0V
3.9V
2.0V
3.9V
2.0V
3.9V
121
121
37
37
100
70
DC
DC
25
25
5 TwTinH
6 TpTin
Timer Input
High Width
Timer Input Period
7 TrTin,TfTin Timer Input Rise
and Fall Timers
8A TwIL
Interrupt Request
Low Time
8B TwIL
Int. Request
Low Time
2.0V
3.9V
2.0V
3.9V
2.0V
3.9V
2.0V
3.9V
2.0V
3.9V
3TpC
3TpC
8TpC
8TpC
100
70
5TpC
5TpC
100
100
9 TwIH
10 Twsm
Interrupt Request
Input High Time
Stop-Mode Recovery Width
Spec
2.0V
3.9V
2.0V
3.9V
2.0V
3.9V
5TpC
5TpC
12
12
5TpC
5TpC
11 Tost
Oscillator Start-up Time
2.0V
3.9V
5TpC
5TpC
12 Twdt
Watch-Dog Timer (5 ms)
Delay Time
2.0V
3.9V
10
5
75
20
(10 ms)
2.0V
3.9V
30
10
150
40
(15 ms)
2.0V
3.9V
50
20
300
80
(80 ms)
2.0V 200 1200
3.9V
80
320
Notes:
1. Timing Reference uses 0.9 VCC for a logic 1 and 0.1 VCC for a logic 0.
2. Interrupt request through Port 3 (P33-P31).
3. Interrupt request through Port 3 (P30).
4. SMR – D5 = 0
5. SMR – D5 =1
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ms
ms
ms
ms
ms
ms
ms
ms
Notes
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1,2
1,2
1,3
1,3
1,2
1,2
5
5
4
4
4
4
1
DS97LVO0701
2-11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet Z86L78.PDF ] | |
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