DS5000FP-16+ Maxim Integrated Products, DS5000FP-16+ Datasheet - Page 4

• Manufacturer Part Number: DS5000FP-16+
• Description: IC MODULE MICRO 16MHZ 80-QFP
• Manufacturer: Maxim Integrated Products
• Series: DS500xr

Specifications of DS5000FP-16+

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SIO, UART/USART
• Peripherals: Power-Fail Reset, WDT
• Number Of I /o: 32
• Program Memory Type: SRAM
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4.75 V ~ 5.25 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 80-MQFP, 80-PQFP
• Processor Series: DS5000
• Core: 8051
• Data Bus Width: 8 bit
• Program Memory Size: 8 KB to 64 KB
• Data Ram Size: 8 KB to 64 KB
• Interface Type: 3-Wire, RS-232, UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 2
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: DS5000TK
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

PIN DESCRIPTION
15, 17, 19, 21,
49, 50, 51, 56,
25, 27, 29, 31
58, 60, 64, 66
47, 48
52, 53
PIN
41
34
36
38
39
40
44
45
46
68
70
73
P1.0–P1.7 General-Purpose I/O Port 1
P2.0–P2.7
P3.6/
P3.7/
P3.4/T0
XTAL2,
P3.5/T1
XTAL1
NAME
PSEN
P3.0/
RXD
P3.1/
P3.2/
INT0
P3.3/
GND
TXD
INT1
ALE
RST
EA
WR
RD
Active-High Reset Input. A logic 1 applied to this pin activates a reset state. This
pin is pulled down internally so this pin can be left unconnected if not used.
General-Purpose I/O Port Pin 3.0. Also serves as the receive signal for the on
board UART. This pin should not be connected directly to a PC COM port.
General-Purpose I/O Port Pin 3.1. Also serves as the transmit signal for the on-
board UART. This pin should not be connected directly to a PC COM port.
General-Purpose I/O Port Pin 3.2. Also serves as the active-low External
Interrupt 0.
General-Purpose I/O Port Pin 3.3. Also serves as the active-low External
Interrupt 1.
General-Purpose I/O Port Pin 3.4. Also serves as the Timer 0 input.
General-Purpose I/O Port Pin 3.5. Also serves as the Timer 1 input.
General-Purpose I/O Port Pin. Also serves as the write strobe for expanded bus
operation.
General-Purpose I/O Port Pin. Also serves as the read strobe for expanded bus
operation.
Crystal Connections. Used to connect an external crystal to the internal
oscillator. XTAL1 is the input to an inverting amplifier and XTAL2 is the output.
General-Purpose I/O Port 2. Also serves as the MSB of the expanded address
bus.
Program Store Enable. This active-low signal is used to enable an external
program memory when using the expanded bus. It is normally an output and
should be unconnected if not used.
Loader. At this time,
done once the DS5000FP is already in a reset state. The device that pulls down
should be open drain since it must not interfere with
operation.
Address Latch Enable. Used to de-multiplex the multiplexed Expanded
Address/Data bus on Port 0. This pin is normally connected to the clock input on a
’373 type transparent latch. When using a parallel programmer, this pin also
assumes the
External Access. This pin forces the DS5000FP to behave like an 8031. No
internal memory (or clock) will be available when this pin is at a logic low. Since
this pin is pulled down internally, it should be connected to +5V to use NV RAM.
In a parallel programmer, this pin also serves as V
Logic Ground
PROG
function for programming pulses.
PSEN
4 of 22
will be pulled down externally. This should only be
FUNCTION
PSEN
is also used to invoke the Bootstrap
PP
for super voltage pulses.
PSEN
under normal