参数资料
型号: SMQ320C32PCMM50
厂商: TEXAS INSTRUMENTS INC
元件分类: 数字信号处理
英文描述: 24-BIT, 50 MHz, OTHER DSP, PQFP144
封装: PLASTIC, QFP-144
文件页数: 36/50页
文件大小: 674K
代理商: SMQ320C32PCMM50
SMQ320C32
DIGITAL SIGNAL PROCESSOR
SGUS027B – APRIL 1998 – REVISED MARCH 19998
41
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
timing for SHZ pin [Q = tc(CI)] (see Figure 36)
NO
’320C32-50
’320C32-60
UNIT
NO.
MIN
MAX
MIN
MAX
UNIT
104
tdis(SHZ)
Disable time, SHZ low to all O, I/O pins in the high-impedance state
0*
2Q*
0*
2Q*
ns
* This parameter is not production tested.
104
H3
H1
SHZ
(see Note A)
All I/O Pins
NOTE A: Enabling SHZ destroys ’C32 register and memory contents. Assert SHZ = 1 and reset the ’C32 to restore it to a known condition.
Figure 36. SHZ Pin Timing
Table 1. Thermal Resistance Characteristics for PCM package
PARAMETER
MIN
MAX
UNIT
R
ΘJA Junction-to-free-air
39
°C/W
R
ΘJC Junction-to-case
10.0
°C/W
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