参数资料
型号: 73M1822-KEYCHN
厂商: Maxim Integrated Products
文件页数: 3/82页
文件大小: 0K
描述: BOARD KEYCHAIN 73M1822 42-QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
主要目的: *
嵌入式: *
已用 IC / 零件: *
主要属性: *
次要属性: *
已供物品: 板,CD
DS_1x22_001
73M1822/73M1922 Data Sheet
Rev. 1.6
11
2.3
73M1902 32-Pin QFN Pinout
Figure 4 shows the 73M1902 32-pin QFN pinout.
6
7
8
9
5
4
3
2
1
17
18
19
20
24
23
22
21
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
VND
GPIO5
GPIO4
VPD/VPPLL
OSCIN/MCLK
OSCOUT
VNPLL
VNA
VND
SCLK
INT/RGDT
LEV
VPT/VPD
RST
PRP
PRM
V
BG
AO
UT
T
O
U
T
YPE
VPA
/VPM
S
CL
KM
V
NM
/V
NT
M/
S
73M1902
S
DIN
G
P
IO
6
V
ND
F
S
F
S
D
VPD
S
DO
UT
G
P
IO
7
Figure 4: 73M1902 32-Pin QFN Pinout
Table 3 describes the pin functions for the device. Decoupling capacitors on the power supplies should be
included for each pair of supply pins.
Table 3: 73M1902 32-Pin QFN Pin Definitions
Pin
Number
Pin Name
Type
Description
1
VND
GND
Negative digital ground
2
GPIO5
I/O
Configurable digital input/output pins
3
GPIO4
I/O
Configurable digital input/output pins
4
VPD/VPPLL
PWR
Positive digital/PLL supply
5
OSCIN/MCLK
I
Crystal oscillator circuit input pin.
Input from an external clock source.
Crystal frequency range supported is 9 MHz – 27 MHz.
6
OSCOUT
O
Crystal oscillator output pin. (N.C. with external oscillator)
7
VNA/VNPLL
GND
Negative analog/PLL ground
8
VNA/VNPLL
GND
Negative analog/PLL ground
9
VBG
O
Band gap voltage reference monitor
10
AOUT
O
Call progress audio output
11
TOUT
O
Digital test output
12
TYPE
I
Type of frame sync. 0 = late (mode0), 1 = early (mode1).
Weak-pulled high – default = early.
13
VPA/VPM
PWR
Positive analog supply
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