參數(shù)資料
型號(hào): MAX1402EAI+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 27/38頁(yè)
文件大?。?/td> 0K
描述: IC ADC 18BIT LP 28-SSOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,000
位數(shù): 18
采樣率(每秒): 480
數(shù)據(jù)接口: QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 34mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 28-SSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 3 個(gè)差分,單極;3 個(gè)差分,雙極;5 個(gè)偽差分,單極;5 個(gè)偽差分,雙極
MAX1402
+5V, 18-Bit, Low-Power, Multichannel,
Oversampling (Sigma-Delta) ADC
______________________________________________________________________________________
33
/* Low-level function to write 8 bits
** The example shown here is for a bit-banging system with (CPOL=1, CPHA=1)
*/
void WriteByte (BYTE x)
{
drive SCK pin high
count = 0;
while (cout <= 7)
{
if (bit 7 of x is 1)
drive DIN pin high
else
drive DIN pin low
drive SCK pin low
x = x * 2;
drive SCK pin high
count = count + 1;
}
/* Low-level function to read 8 bits
** The example shown here is for a bit-banging system with (CPOL=1, CPHA=1)
*/
BYTE ReadByte (void)
{
x = 0;
drive SCK pin high
count = 0;
while (cout <= 7)
{
x = x * 2;
drive SCK pin low
if (DOUT pin is high)
x = x + 1;
drive SCK pin high
count = count + 1;
}
return x;
Figure 15. Bit-Banging SPI Replacement
VDD
P3.0
P3.1
RESET
DOUT
DIN
SCLK
CS
8051
MAX1402
Figure 14. MAX1402 to 8051 Interface
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