19-1322; Rev 0; 12/97
68HC16 Module
_____________________________________________68HC16 Module Component List
DESIGNATION
C1, C2, C3
C4, C5
C6, C7
C8
C9
C10鈥揅14
D1
J1
J2
J3
J4
JU1
JU2
JU3
JU4
JU5
L1
L2
LED1
R1
QTY
3
2
2
1
0
5
1
1
1
1
0
0
0
0
0
0
0
0
1
1
DESCRIPTION
1碌F ceramic capacitors
22碌F, 25V radial-lead electrolytic
capacitors
22pF capacitors
0.01碌F capacitor
Reference designator, not used
0.1碌F capacitors
1N4001 diode
40-pin right-angle male connector
2-circuit terminal block
Right-angle printed circuit board
mount, DB9 female socket
Open
Open
Reference designator, not used
Open
Open
Open
Open
Open
Light-emitting diode
10M鈩? 5% resistor
DESIGNATION
R2
R3, R4
R5
R6
SW1
SW2
U1
U2
U3
U4
U5
U6
U7
Y1
None
None
None
None
None
QTY
1
2
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
DESCRIPTION
330k鈩? 5% resistor
10k鈩? 5% resistors
470鈩? 5% resistor
10k鈩?SIP resistor
Slide switch
Momentary pushbutton switch
68HC16 碌C
MC68HC16Z1CFC16 (132-pin
plastic quad flat pack)
Maxim MAX233CPP
27C256 EPROM containing
monitor program
7805 regulator, TO-220 size
62256 (32K x 8) static RAM
74HCT245 bidirectional buffer
Maxim MAX707CPA
32.768kHz watch crystal
Rubber feet
28-pin socket for U3
20-pin socket for U6
3" x 5" printed circuit board
Heatsink for U4, thermalloy # 6078
68HC16 Module
68HC16 Module
________________General Description
The 68HC16 module is an assembled and tested print-
ed-circuit board intended for use with Maxim鈥檚 high-
speed serial-interface evaluation kits (EV kits). The
module uses an inexpensive 8-bit implementation of
Motorola鈥檚 MC68HC16Z1 microcontroller (碌C) to collect
data samples at high speed using the QSPI鈩?interface.
It requires an IBM-compatible personal computer and
an external DC power supply, typically 12V DC or as
specified in EV kit manual.
Maxim鈥檚 68HC16 module is provided to allow customers
to evaluate selected Maxim products. It is not intended
to be used as a microprocessor development platform,
and such use is not supported by Maxim.
68HC16 Module
________________Detailed Description
Power Input Connector J2
The 68HC16 module draws its power from a user-sup-
plied power source connected to terminal block J2. Be
sure to note the positive and negative markings on the
board. A three-terminal 5V regulator allows input voltages
between 8V and an absolute maximum of 20V. The
68HC16 module typically requires 200mA of input current.
68HC16 Microcontroller
U1 is Motorola鈥檚 68HC16Z1 碌C. Contact Motorola for 碌C
information, development, and support. Maxim EV kits use
the high-speed queued serial peripheral interface (QSPI)
and the internal chip-select generation.
A MAX707 on the module monitors the 5V logic supply,
generates the power-on reset, and produces a reset
pulse whenever the reset button is pressed.
QSPI is a trademark of Motorola Corp.
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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