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Z8C520 데이터시트 PDF




Zilog.에서 제조한 전자 부품 Z8C520은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 Z8C520 기능
기능 1.5 MBPS USB Device Controller
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Z8C520 데이터시트, 핀배열, 회로
PRELIMINARY PRODUCT SPECIFICATION
Z8E520/C520
1
1.5 MBPS USB LOW-POWER
DEVICE CONTROLLER FOR
MULTIPROTOCOL POINTING DEVICES
FEATURES
Part
Number
Z8E520 (OTP)
Z8C520 (ROM)
ROM
(KB)
6
6
RAM
(Bytes)
176
176
Speed
(MHz)
12
12
s Six Vectored Interrupts with Fixed Priority
s Processor Speed Dividable by Firmware Control
s Operating Current: 5 mA typical in USB Mode; 2.5 mA
typical in Serial Mode (@ 3 MHz); 5 mA typical in PS/2
Mode
s 16 Total Input/Output Pins (Open-Drain/Push-Pull)
Configurable
s 6 inputs with 3 level Programmable Reference
Comparators
s 16-Bit Programmable Watch-Dog Timer (WDT) with
Internal RC Oscillator
s Software Programmable Timers Configurable as:
– Two 8-Bit Standard Timers and One 16-Bit
Standard Timer or
– One 16-Bit Standard Timer and One 16-Bit Pulse
Width Modulator (PWM) Timer
s Identical Masked ROM Version (Z8C520)
s On-Chip Oscillator that accepts a Ceramic Resonator or
External Clock
s Hardware Support for PS/2, Serial, USB, and General-
Purpose I/O (GPIO)
s Power Reduction Modes:
– STOP Mode (functionality shut down except SMR)
– HALT Mode (XTAL still running-peripherals active)
s USB SIE Compliant with USB Spec 1.0
s 4.0 VDC to 6.0 VDC Operating Range @ 0°C to +70°C
GENERAL DESCRIPTION
Zilog’s Z8E520 (OTP) and Z8C520 (Masked ROM) micro-
controllers are low-power Z8Plus MCUs, designed for the
cost-effective implementation of USB and multiprotocol
pointing devices.
For applications demanding powerful I/O capabilities, the
Z8E520's input and output lines are grouped into two ports,
and are configurable under software control to provide tim-
ing, status signals, or parallel I/O.
Both 8-bit and 16-bit timers, with a large number of user se-
lectable modes, off-load the system of administering real-
time tasks such as counting/timing and I/O data communi-
cations.
The microcontroller clock frequency is derived from the
system clock by a programmable divider under firmware
control.
The device is capable of functioning in four distinct, select-
able communications modes: PS/2, RS232, GPIO (Gener-
al-purpose I/O), and USB. The communications mode de-
termines the functionality of the two special serial
communications pins (PB6 and PB7). The device is placed
in the required mode when firmware sets the specified
mode bit in the communications control register. The firm-
ware interface is similar in all modes. The same buffer area
in RAM will accept the data to be transmitted. Up to 8 bytes
may be loaded, and the data will actually be transmitted as
soon as the appropriate command is issued (setting In
Packet Ready in USB mode, for example).
DS97KEY2005
PRELIMINARY
1




Z8C520 pdf, 반도체, 판매, 대치품
Z8E520/C520
1.5 MBPS USB Device Controller
PIN IDENTIFICATION
PA6 1
20 PA5
PA7 PA4
PB0 XTAL (2)
PB1
20-Pin
GND
PB2
DIP/SOIC
XTAL (1)
PB3 VCC
PB4 PB7
PB5 PB6
PA0 PA3
PA1 10
11 PA2
Figure 3. 20-Pin DIP/SOIC Pin Assignments
STANDARD Mode
Pin #
1, 2
3–8
9–12
13–14
15
16
17
18
19, 20
Symbol
PA X(6,7)
PB X(0–5)
PA X(0–3)
PB X (6–7)
Vcc
XTAL (1)
GND
XTAL (2)
PA X(4,5)
Table 1. 20-Pin DIP/SOIC Pin Identification
Function
Digital I/O + I SINK
Digital I/O +Comparators
Digital I/O
Digital I/O + Communications
Power
Clock
Power
Clock
Digital I/O + I SINK
Zilog
Direction
Bidirectional
Bidirectional
Bidirectional
Bidirectional
Bidirectional
4
PRELIMINARY
DS97KEY2005

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Z8C520 전자부품, 판매, 대치품
Zilog
STANDARD TEST CONDITIONS
The characteristics listed here apply for standard test con-
ditions as noted. All voltages are referenced to GND. Pos-
itive current flows into the referenced pin (Figure 5).
Z8E520/C520
1.5 MBPS USB Device Controller
From Output
Under Test
150 pF
1
Figure 5. Test Load Diagram
CAPACITANCE
TA = 25°C; VCC = GND = 0V; f = 1.0 MHz; unmeasured pins returned to GND.
Parameter
Input Capacitance
Output Capacitance
I/O Capacitance
Note: Frequency tolerance ±10%
Max
12 pF
12 pF
12 pF
DS97KEY2005
PRELIMINARY
7

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Z8C520

1.5 MBPS USB Device Controller

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