General Description
The 68HC16MOD-16WIDE module is an assembled and
tested printed-circuit board intended for use with
Maxim’s high-speed evaluation kits (EV kits). The mod-
ule uses a full 16-bit implementation of Motorola’s
MC68HC16Z1 microcontroller (µC). It requires an IBM-
compatible personal computer and an external DC
power supply, typically 12V or as specified in the EV kit
manual.
Maxim’s 68HC16MOD-16WIDE module allows cus-
tomers 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.
QSPI is a trademark of Motorola Corp.
Detailed Description
Power Input Connector J2
The 68HC16MOD-16WIDE module draws its power from
a user-supplied 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 maxi-
mum of 20V. The 68HC16MOD-16WIDE module typical-
ly requires 200mA of input current.
68HC16 Microcontroller
U1 is Motorola’s 68HC16Z1 µC. Contact Motorola for µC
information, development, and support. Maxim EV kits
may use the 16-bit wide bus or use the high-speed
queued serial peripheral interface (QSPI™) and the
internal chip-select generation.
A MAX707 on the module (U7) monitors the 5V logic
supply, generates the power-on reset, and produces a
reset pulse whenever the reset button is pressed.
Right-angle printed circuit board
mount, DB9 female socket
1J3
2-circuit terminal block1J2
1N4001 diode1D1
22pF ceramic capacitors2C6, C7
22µF, 25V electrolytic capacitors2C4, C5
10µF, 25V electrolytic capacitor1C1
DESCRIPTIONQTYDESIGNATION
10MΩ, 5% resistor1R1
Light-emitting diode1LED1
Rubber feet4None
32.768kHz watch crystal1Y1
Maxim MAX707CPA1U7
74HCT245 bidirectional buffers2U6, U9
62256 (32K x 8) static RAMs2U5, U8
28-pin socket1U3
27C256 EPROM containing
monitor program
1U3
Maxim MAX233CPP1U2
68HC16 microcontroller
MC68HC16Z1CFC16 (132-pin
plastic quad flat pack)
1U1
DESCRIPTIONQTYDESIGNATION
5" x 5" printed circuit board1None
Component List
Slide switch1SW1
Momentary pushbutton switch1SW2
68HC16MOD-16WIDE
68HC16MOD-16WIDE
________________________________________________________________ Maxim Integrated Products
1
0.1µF ceramic capacitors7C2, C8–C12, C14
100µF, 25V electrolytic capacitor1C13
1N4742A 12V, 1W zener diode1D2
Maxim ICL7662CPA1U10
330kΩ, 5% resistor1R2
10kΩ, 5% resistors2R3, R4
470Ω, 5% resistor1R5
10kΩ, SIP resistor1R6
100Ω, 5% resistor1R7
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
1µF ceramic capacitor1C3
40-pin right-angle male connectors2P1, P2
20-pin sockets2U6, U9
Heatsink, thermalloy # 60781U4
7805 regulator, TO-220 size1U4
