DS80C390 Maxim, DS80C390 Datasheet - Page 2

• Manufacturer Part Number: DS80C390
• Description: The DS80C390 is a fast 8051-compatible microprocessor with dual CAN 2
• Manufacturer: Maxim

Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10:
ABSOLUTE MAXIMUM RATINGS
Voltage Range on Any Pin Relative to Ground……………………………………………………….-0.3V to (V
Voltage Range on V
Operating Temperature Range………………………………………………………………………………..-40°C to +85°C
Storage Temperature Range………………………………………………………………………………...-55°C to +125°C
Soldering Temperature…..……………………………………………………………………..See IPC/JEDEC J-STD-020
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is
not implied. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS (Note 10)
Supply Voltage
Power-Fail Warning
Minimum Operating Voltage
Supply Current, Active Mode (Note 1)
Supply Current, Idle Mode (Note 2)
Supply Current, Stop Mode (Note 3)
Supply Current, Stop Mode, Bandgap Enabled (Note 3)
Input Low Level
Input High Level
Input High Level for XTAL1, RST
Output Low Voltage for Port 1, 3, 4, 5 at I
Output Low Voltage for Port 0, 1, 2, 4, 5, RD, WR, RSTOL, PSEN,
and ALE at I
Output High Voltage for Port 1, 3, 4, 5 at I
Output High Voltage for Port 1, 3, 4, 5 at I
Output High Voltage for Port 0, 1, 2, 4, 5, RD, WR, RSTOL, PSEN,
and ALE at I
Input Low Current for Port 1, 3, 4, 5 at 0.45V (Note 8)
Logic 1 to 0 Transition Current for Port 1, 3, 4, 5 (Note 9)
Input Leakage Current for Port 0 (Input Mode Only)
RST Pulldown Resistance
Active current measured with 40MHz clock source on XTAL1, V
Idle mode current measured with 40MHz clock source on XTAL1, V
Stop mode current measured with XTAL1 = RST = EA = V
RST = V
Applies to port pins when they are used to address external memory or as CAN interface signals.
This measurement reflects the port during a 0-to-1 transition in I/O mode. During this period a one-shot circuit drives the ports hard
for two clock cycles. If a port 4 or 5 pin is functioning in memory mode with pin state of 0 and the SFR bit contains a 1, changing
the pin to an I/O mode (by writing to P4CNT) will not enable the 2-cycle strong pullup. During Stop or Idle mode the pins switch to
I/O mode, and so port 2 and port 1 (in nonmultiplexed mode) will not exhibit the 2-cycle strong pullup when entering Stop or Idle
mode.
Port 3 pins 3.6 and 3.7 have a stronger than normal pullup drive for one oscillator period following the transition of either the RD or
WR from a 0-to-1 transition.
This is the current required from an external circuit to hold a logic low level on an I/O pin while the corresponding port latch bit is
set to 1. This is only the current required to hold the low level; transitions from 1 to 0 on an I/O pin also have to overcome the
transition current.
Ports 1(in I/O mode), 3, 4, and 5 source transition current when being pulled down externally. It reaches its maximum at
approximately 2V.
Specifications to -40°C are guaranteed by design and not production tested.
OL
OH
= 3.2mA (Note 5)
= -8mA (Note 5, 7)
CC
. This condition mimics operation of pins in I/O mode.
CC
Relative to Ground……………………………………………………………………-0.3V to +6.0V
PARAMETER
OL
OH
OH
= 1.6mA
= -50μA (Note 4)
= -1.5mA (Note 6)
2 of 53
SS
, V
CC
CC
= 5.5V, all other pins disconnected.
SYMBOL
= RST = 5.5V, all other pins disconnected.
CC
V
I
I
R
V
V
V
V
V
V
I
V
V
STOP
SPBG
= 5.5V, RST = EA = V
V
I
IDLE
V
I
PFW
I
RST
CC
OH1
OH2
OH3
OL1
OL2
I
RST
T1
CC
IH2
IL
L
IH
IL
0.7 x V
V
-300
MIN
4.10
3.85
-0.5
2.0
2.4
2.4
2.4
50
RST
CC
SS
, all other pins disconnected.
TYP
4.38
4.13
150
5.0
80
40
1
V
V
CC
CC
+300
MAX
-650
4.60
4.35
+0.8
0.45
0.45
150
120
350
170
5.5
-55
75
+0.5
+0.5
CC
+ 0.5V)
UNITS
mA
mA
μA
μA
μA
μA
μA
kΩ
V
V
V
V
V
V
V
V
V
V
V