Z8E520 Datasheet, PDF (5/43 Pages) Zilog, Inc. – 1.5 MBPS USB Device Controller

Zilog
Z8E520/C520
1.5 MBPS USB Device Controller
D0 1
20
D1
D2
CLK (1 MHz)
D3
GND
D4
20-Pin
(CLK OUT)
D5
DIP/SOIC
VCC
D6
D7
TST_CLR
VPP
PGM 10
11 ADDRCLK
Figure 4. 20-Pin DIP/SOIC Pin Assignments:
EPROM Programming Mode
Table 2. 20-Pin DIP/SOIC Pin Identification:
EPROM Programming Mode
EPROM PROGRAMMING Mode
Pin #
1–8
9
10
11
12
13–14
15
16
17
18
19
20
Symbol
D0–D7
TST_CLR
PGM
ADDRCLK
V_PP
V_CC
CLKOUT
GND
CLK
Function
Data Bus
Reset Internal Address Counter
Program Pin
Clock to Address Counter
High Voltage to Program Device
Unused
Power
Output from Clock Inverter
Power Ref
1 MHz to chip
Unused
Unused
1
Direction
I/O
In
In
In
Power
Power
Out
Power
In
DS97KEY2005
PRELIMINARY
5