Motorola HT1250-LS+ - Page 96

5-38 Schematic Diagrams, Overlays, and Parts Lists
DB7
A0
R/W*
RST*
CS*
ON
VS_INT
VS_GAINSEL
Key_Row
SrD_Rtn
VS_RAC
Gnd
J400
40-PIN CONNECTOR
VS_CS
VS_AUDSEL
EXT_MIC
Flat_Tx_Rtn
SCK_Snd
Key_Col
SrD_Snd
Det_Aud_Snd
Opt_Bd_En
Rx_Aud_Rtn
Rdy/Req
Tx_Aud_Snd
Tx_Aud_Rtn
PTT
Vddd
INT_EXT_Vdd
Rx_Aud_Snd
Key_Intrp
SW_B+
LED_EN
DB0
DB1
DB2
DB3
DB4
DB5
DB6
OFF_BATT_DATA_OUT
100pF
C463
C466
100pF
100pF
C458
100pF
C459
0.1uF
C467
24K
R481
C536
100pF100pF
C537
C535
100pF100pF
C534C533
100pF100pF
C532
C404
100pF
E408
E409
E407
J400-13
J400-20
J400-14
J400-5
J400-4
J400-6
J400-7
J400-8
J400-9
J400-10
J400-11
J400-19
J400-12
J400-38
J400-22
J400-28
J400-26
J400-37
J400-23
J400-33
J400-32
E406
E404
E405
E403
E402
E401
E400
C481
0.1uF
J400-1
J400-2
J400-18
J400-16
J400-36
J400-17
J400-40
J400-39
J400-21
J400-27
J400-34
J400-29
J400-30
J400-35
J400-15
J400-24
J400-3
J400-31
J400-25
D2
D1
D0
0
R482
KEY_INT
INT_EXT_Vdd
VS_INT
Vddd
VS_AUDSEL
VS_GAINSEL
MISO
VS_RAC
D7
D4
D5
D3
D6
TX_AUD_SND
PTT
SWB+
KEYPAD_ROW
KEYPAD_COL
A0
R_W
RESET
LCD_SEL
LEDBL
OFF_BATT_DATA_OUT
OPT_ENA
DATA
RDY
FLAT_TX_RTN
TX_AUD_RTN
VS_CS
EXT_MIC
CLK
FLAT_RX_SND
RX_AUD_RTN
URX_SND
Figure 5-32. 700 MHz Keypad/PassPort Board Interface Schematic Diagram