HT82K75REW datasheet(4/103 Pages) HOLTEK

4 / 103 page

Pin Description for EEPROM Memory

Pin Name

Type

Description

VDDP

External Positive power supply for EEPROM Memory

VSSP

External Negative power supply for EEPROM Memory, ground

SDA

I/O

Internal Serial data input/output signal

Internal connected with MCU I/O line.

SCL

Serial clock input signal

Internal connected with MCU I/O line.

Implies that the pin is

²Not Connected² and can therefore not be used.

Note:

The pin descriptions for all external pins with the exception of the EEPROM VDDP and VSSP pins are

described in the preceding MCU section.

VDDP and VSSP should be externally connected to the MCU power supply named VDD and VSS respectively.

The SDA and SCL lines here are internal connected to the MCU I/O pins PC0 and PC1 respectively for these

devices.

Pin Description for RF Transceiver

Pin Name

Type

Description

RF_P

I/O

External Differential RF input/output (+)

RF_N

I/O

External Differential RF input/output (-)

VDD_RF1

External RF transceiver power supply

(1)

VDD_RF2

External RF transceiver power supply

(1)

GPIO0

GPIO1

I/O

External General Purpose digital I/O

It is also used as an external TX/RX switch control

GPIO2

I/O

External General Purpose digital I/O

It is also used as an external Power Amplifier (P.A.) enable control.

VDD_D

External RF transceiver digital circuit power supply (+)

GND_D

External RF transceiver digital circuit power supply (-)

VDD_2V2

External RF transceiver DC-DC output voltage

It cannot be used.

VDD_3V

External RF transceiver 3V input for a DC-DC regulator

GND_GR

External RF transceiver Guard-Ring ground

VDD_A

External RF transceiver power supply for analog circuits

(1)

XTAL_P

External RF transceiver 32MHz Crystal input (+)

XTAL_N

External RF transceiver 32MHz Crystal input (-)

VDD_PLL

External RF transceiver PLL power supply

(1)

VDD_CP

External RF transceiver Charge pump power supply

(1)

VDD_VCO

External RF transceiver Voltage-controlled oscillator power supply

(1)

LOOP_C

I/O

External RF transceiver PLL loop filter external capacitor

It is connected to the external 47pF capacitor.

VDD_GR

External RF transceiver Guard-Ring power supply

(1)

VDD_BG

External RF transceiver Bandgap power supply

(1)

DB4

External Test pin

It is connected to ground.

DB5

External Test pin

It is connected to ground.

HT82M75REW/HT82K75REW

Rev. 1.00

June 11, 2010

HT82K75REW датащи(PDF) 4 Page - Holtek Semiconductor Inc

HT82K75REW датащи(HTML) 4 Page - Holtek Semiconductor Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL