71M6541F Maxim, 71M6541F Datasheet - Page 70
71M6541F
Manufacturer Part Number
71M6541F
Description
The 71M6541D/71M6541F/71M6541G/71M6542F/71M6542G are Teridian™ 4th-generation single-phase metering SoCs with a 5MHz 8051-compatible MPU core, low-power RTC with digital temperature compensation, flash memory, and LCD driver
Manufacturer
Maxim
Datasheet
1.71M6541D.pdf
(166 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
71M6541F-IGT
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
71M6541F-IGT/F
Manufacturer:
MAXIM/TERIDIAN
Quantity:
411
Company:
Part Number:
71M6541F-IGTR/F
Manufacturer:
Maxim Integrated
Quantity:
10 000
Company:
Part Number:
71M6541FT-IGT/F
Manufacturer:
MAXIM/TERIDIAN
Quantity:
80
- Current page: 70 of 166
- Download datasheet (3Mb)
71M6541D/F/G and 71M6542F/G Data Sheet
LCD Drivers (71M6542F/G)
With a maximum of 56 LCD driver pins available, the 71M6542D/F is capable of driving up to 6 x 56 = 336
pixels of an LCD display when using the 6 x multiplex mode. At eight pixels per digit, this corresponds to
42 digits.
LCD segment data is written to the LCD_SEGn[5:0] I/O RAM registers as described in
for the .
SEG46 through SEG50 cannot be configured as DIO pins. Display data for these pins are written to I/O
RAM fields LCD_SEG46[5:0] (I/O RAM 0x243E[5:0]) through LCD_SEG50[5:0] (I/O RAM 0x2442[5:0]); see
Table
function whenever ICE_E is pulled high.
2.5.9 EEPROM Interface
The 71M6541D/F/G provides hardware support for either a two-pin or a three-wire (µ-wire) type of
EEPROM interface. The interfaces use the SFR EECTRL (SFR 0x9F) and EEDATA (SFR 0x9E)
registers for communication.
2.5.9.1 Two-pin EEPROM Interface
The dedicated 2-pin serial interface communicates with external EEPROM devices and is intended for
use with I
pins and is selected by setting DIO_EEX[1:0] = 01 (I/O RAM 0x2456[7:6]). The MPU communicates with
the interface through the SFR registers EEDATA and EECTRL. If the MPU wishes to write a byte of data
to the EEPROM, it places the data in EEDATA and then writes the Transmit code to EECTRL. This
initiates the transmit operation which is finished when the BUSY bit falls. INT5 is also asserted when
BUSY falls. The MPU can then check the RX_ACK bit to see if the EEPROM acknowledged the trans-
mission.
A byte is read by writing the Receive command to EECTRL and waiting for the BUSY bit to fall. Upon
completion, the received data is in EEDATA. The serial transmit and receive clock is 78 kHz during each
transmission, and then holds in a high state until the next transmission. The EECTRL bits when the
two-pin interface is selected are shown in
70
59. The associated pins function as ICE interface pins, and the ICE functionality overrides the LCD
2
C devices. The interface is multiplexed onto the SEGDIO2 (SDCK) and SEGDIO3 (SDATA)
Table 59: 71M6542F/G LCD Data Registers for SEG46 to SEG50
SEG
Pin #
Configuration:
SEG Data Register
Table
60.
Always LCD pins, except
when used for ICE interface
or TMUXOUT/TMUX2OUT.
46
93
47
92
48
58
49
57
50
56
2.5.8.3 Digital I/O
Rev 2
Related parts for 71M6541F
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
The DS5250 is a highly secure, four clocks-per-machine cycle, 100% 8051-instruction-set-compatible microprocessor in Maxim's secure microcontroller family
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
The MAX9263/MAX9264 chipset extends Maxim's gigabit multimedia serial link (GMSL) technology to include high-bandwidth digital content protection (HDCP) encryption for content protection of DVD and Blu-ray™ video and audio data
Manufacturer:
Maxim
Part Number:
Description:
The Maxim MXL1016 (10ns, typ) high-speed, complementary-output comparator is designed specifically to
interface directly to TTL logic while operating from
either a dual ±5V supply or a single +5V supply
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's DG300–DG303 and DG300A–DG303A CMOS dual and quad analog switches combine low power operation with fast switching times and superior DC and AC switch characteristics
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG401/DG403/DG405 analog switches now feature guaranteed low on-resistance matching between switches (2Ω max) and guaranteed on-resistance flatness over the signal range (3Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG401/DG403/DG405 analog switches now feature guaranteed low on-resistance matching between switches (2Ω max) and guaranteed on-resistance flatness over the signal range (3Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG401/DG403/DG405 analog switches now feature guaranteed low on-resistance matching between switches (2Ω max) and guaranteed on-resistance flatness over the signal range (3Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG406 and DG407 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG406 and DG407 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG408 and DG409 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG408 and DG409 CMOS analog multiplexers now feature guaranteed matching between channels (8Ω max) and flatness over the specified signal range (9Ω max)
Manufacturer:
Maxim
Datasheet:
Part Number:
Description:
Maxim's redesigned DG411/DG412/DG413 analog switches now feature low on-resistance matching between switches (3Ω max) and guaranteed on-resistance flatness over the signal range (Δ4Ω max)
Manufacturer:
Maxim
Datasheet: