HD404328 Datasheet, PDF (94/96 Pages) Hitachi Semiconductor – 4 BIT SINGLE CHIP MICROCOMPUTER

HD404328 Series
VCC = 3.5 V to 6.0 V (HD404324, HD404324U, HD404326, HD404326U, HD404328, HD404328U)
VCC = 3.5 V to 5.5 V (HD4074329, HD4074329U)
t _Scyc
t _SCKf
t _SCKr
t _SCKHD
SCK
V_CC – 2.0 V (0.8V_CC )*
0.8 V (0.2V_CC )*
t _SCKL
t _SCKH
t _DSO
SO
V_CC – 2.0 V
0.8 V
t _SSI
t _HSI
SI
0.8VCC
0.2VCC
Note: * V_CC – 2.0 V and 0.8 V are the threshold voltages for transmit clock output,
0.8V_CC and 0.2V_CC are the threshold voltages for transmit clock input, and
t_DSO , t_SSI , and t _HSI are the timings used with transmit clock input voltages.
VCC = 2.7 V to 3.5 V (HD404324, HD404324U, HD404326, HD404326U, HD404328, HD404328U)
VCC = 2.9 V to 3.5 V (HD4074329, HD4074329U)
t _Scyc
t _SCKf
t _SCKr
t _SCKHD
SCK
V_CC – 0.5 V (0.9V_CC )*
0.4 V (0.1V_CC )*
t _SCKL
t _SCKH
t _DSO
SO
V_CC – 0.5 V
0.4 V
t _SSI
t _HSI
SI
0.9VCC
0.1VCC
Note: * V_CC – 0.5 V and 0.4 V are the threshold voltages for transmit clock output,
0.9V_CC and 0.1V_CC are the threshold voltages for transmit clock input, and
t_DSO , t_SSI , and t_HSI are the timings used with transmit clock input voltages.
Figure 52 Serial Interface Timing
Test
point
C
30 pF
VCC
R_L = 2.6 kΩ
R
12 kΩ
1S2074 H
or equivalent
Figure 53 Timing Load Circuit
92