71M6521DE-IM/F Maxim Integrated Products, 71M6521DE-IM/F Datasheet - Page 66
71M6521DE-IM/F
Manufacturer Part Number
71M6521DE-IM/F
Description
IC ENERGY METER 16K FLASH 68-QFN
Manufacturer
Maxim Integrated Products
Specifications of 71M6521DE-IM/F
Mounting Style
SMD/SMT
Package / Case
QFN-68
Program Memory Size
16 KB
Program Memory Type
Flash
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 66 of 107
- Download datasheet (3Mb)
The 71M6521DE/DH/FE has a LCD controller on-chip capable of controlling static or multiplexed LCDs. Figure 34
shows the basic connection for a LCD.
The LCD segment pins can be organized in the following groups:
The split between DIO and LCD use of the combined pins is controlled with the DIO register LCD_NUM. LCD_NUM
can be assigned any number between 0 and 18. The first dual-purpose pin to be allocated as LCD is SEG41/DIO21
(on the 68-pin QFN package). Thus if LCD_NUM=2, SEG41 and SEG 40 will be configured as LCD. The remaining
SEG39 to SEG24 will be configured as DIO19 to DIO4. DIO1 and DIO2 are always available, if not used for the
optical port.
Note that pins CKTEST/SEG19, E_RXTX/SEG38, E_TCLK/SEG33, and E_RST/SEG32 are not affected by
LCD_NUM.
Table 64 and Table 65 show the allocation of DIO and segment pins as a function of LCD_NUM for both package
types.
Page: 66 of 107
1.
2.
3.
4.
Nineteen pins are dedicated LCD segment pins (SEG0 to SEG18).
Four pins are dual-function pins CKTEST/SEG19, E_RXTX/SEG38, E_TCLK/SEG33, and E_RST/SEG32.
Twelve pins are available as combined DIO and segment pins SEG24/DIO4 to SEG31/DIO11 and
SEG34/DIO14 to SEG37/DIO17)
The QFN-68 package adds the three combination pins SEG39/DIO19 to SEG41/DIO21.
6521
Figure 34: Connecting LCDs
Connecting LCDs
LCD
segments
commons
71M6521DE/DH/FE Data Sheet
Rev 2
Related parts for 71M6521DE-IM/F
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC ENERGY METER 16K FLASH 68-QFN
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
IC ENERGY METER 16K FLASH 64LQFP
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
IC ENERGY METER 16K FLASH 64LQFP
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
Power Management Modules & Development Tools 71M6521DE DEMO BOARD M6521DE DEMO BOARD
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
MAX7528KCWPMaxim Integrated Products [CMOS Dual 8-Bit Buffered Multiplying DACs]
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 1.25Gbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Single +5V, fully integrated, 155Mbps laser diode driver.
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
VRD11/VRD10, K8 Rev F 2/3/4-Phase PWM Controllers with Integrated Dual MOSFET Drivers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Highly Integrated Level 2 SMBus Battery Chargers
Manufacturer:
Maxim Integrated Products
Datasheet:
Part Number:
Description:
Current Monitor and Accumulator with Integrated Sense Resistor; ; Temperature Range: -40°C to +85°C
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TSSOP 14/A/RS-485 Transceivers with Integrated 100O/120O Termination Resis
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
QFN 16/A/AC-DC and DC-DC Peak-Current-Mode Converters with Integrated Step
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
TDFN/A/65V, 1A, 600KHZ, SYNCHRONOUS STEP-DOWN REGULATOR WITH INTEGRATED SWI
Manufacturer:
Maxim Integrated Products
Part Number:
Description:
Integrated Temperature Controller f
Manufacturer:
Maxim Integrated Products