78M6612-IMR/F Maxim Integrated Products, 78M6612-IMR/F Datasheet - Page 44

• Manufacturer Part Number: 78M6612-IMR/F
• Description: IC POWER MEASUREMENT AC 68-QFN
• Manufacturer: Maxim Integrated Products

Specifications of 78M6612-IMR/F

• Mounting Style: SMD/SMT
• Package / Case: QFN-68
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

78M6612 Data Sheet
Additionally, if DIO6 and DIO7 are declared outputs, they can be configured as dedicated pulse outputs
(WPULSE = DIO6, VARPULSE = DIO7) using DIO_PW and DIO_PV registers. In this case, DIO6 and
DIO7 are under CE control. DIO4 and DIO5 can be configured to implement the EEPROM Interface.
If the optical UART is not used, TX1 and RX1 can be configured as dedicated DIO pins (DIO1, DIO2,
see
A 3-bit configuration word, I/O RAM register, DIO_Rx (0x2009[2:0] through 0x200E[6:4]) can be used for
certain pins, when configured as DIO, to individually assign an internal resource such as an interrupt or a
timer control (see
VBAT.
The control resources selectable for the DIO pins are listed in
connected to the same resource, the resources are combined using a logical OR.
44
even if they are configured as outputs.
78M6612
Section 1.5.6 Optical
hardware.
distort the LCD waveforms of the other pins. This limitation applies to any pin that can be
due to the resistance of the internal switch that connects V3P3D to either V3P3SYS or
When configured as inputs, the dual-function (DIO/SEG) pins should not be pulled above
shown in
V3P3SYS in MISSION and above VBAT in LCD and BROWNOUT modes. Doing so will
When driving LEDs, relay coils etc., the DIO pins should sink
configured as a LCD driver.
Tracking DIO pins configured as outputs is useful for pulse counting without external
Not recommended
Table 38
Figure 8
V3P3SYS
V3P3SYS
DGND
DGND
V3P3D
V3P3D
VBAT
VBAT
DIO1
DIO1
Figure 8: Connecting an External Load to DIO Pins
Interface).
for DIO pins available for this option). This way, DIO pins can be tracked
, right), not
DIO Pin n Function
Table 39: DIO_DIR Control Bit
R
R
LED
LED
3.3V
3.3V
source it from V3P3D (as shown in
Input
78M6612
0
DIO_DIR [n]
Table
40. If more than one input is
Output
1
Recommended
Recommended
V3P3SYS
V3P3SYS
DIO1
DIO1
V3P3D
V3P3D
DGND
DGND
VBAT
VBAT
the current into ground (as
Figure 8
R
R
, left). This is
DS_6612_001
Rev. 1.2
3.3V
3.3V
LED
LED