Clock And Control Signal Timing; Table 23.18 Clock And Control Signal Timing (Hd6417751Rbp240) - Hitachi SH7751 Hardware Manual

23.3.1

Clock and Control Signal Timing

Table 23.18 Clock and Control Signal Timing (HD6417751RBP240)

V = 3.0 to 3.6 V, V
DDQ
Item
EXTAL PLL1 6-times/PLL2 operation
clock input
PLL1 12-times/PLL2 operation
frequency
PLL1/PLL2 not operating
EXTAL clock input cycle time
EXTAL clock input low-level pulse width
EXTAL clock input high-level pulse width
EXTAL clock input rise time
EXTAL clock input fall time
CKIO clock PLL1/PLL2 operating
output
PLL1/PLL2 not operating
CKIO clock output cycle time
CKIO clock output low-level pulse width
CKIO clock output high-level pulse width
CKIO clock output rise time
CKIO clock output fall time
CKIO clock output low-level pulse width
CKIO clock output high-level pulse width
Power-on oscillation settling time
Power-on oscillation settling time/mode settling
MD reset setup time
MD reset hold time


assert time
PLL synchronization settling time
Standby return oscillation settling time 1
Standby return oscillation settling time 2
Standby return oscillation settling time 3
Standby return oscillation settling time 1*
Standby return oscillation settling time 2*
Standby return oscillation settling time 3*
IRL interrupt determination time
(RTC used, standby mode)


reset hold time
Notes: 1. When a crystal resonator is connected to EXTAL and XTAL, the maximum frequency is 34 MHz.
When a 3rd overtone crystal resonator is used, an external tank circuit is necessary.
2. As there is feedback from the CKIO pin when PLL2 is operating, the load capacitance connected
to the CKIO pin should be a maximum of 50 pF.
* When the oscillation settling time of the crystal resonator is 1 ms or less.
Rev. 3.0, 04/02, page 950 of 1064
= 1.5 V, Ta = –20 to 75
DD


C, C = 30 pF
L
Symbol Min Max
f 16 34
EX
14 20
1 34
t 30 1000
EXcyc
t 3.5 —
EXL
t 3.5 —
EXH
t — 4
EXr
t — 4
EXf
f 25 120
OP
1 34
t 8.3 1000
cyc
t 1 —
CKOL1
t 1 —
CKOH1
t — 3
CKOr
t — 3
CKOf
t 3 —
CKOL2
t 3 —
CKOH2
t 10 —
OSC1
t 10 —
OSCMD
t 3 —
MDRS
t 20 —
MDRH
t 20 —
RESW
t 200 —
PLL
t 3 —
OSC2
t 3 —
OSC3
t 3 —
OSC4
t 2 —
OSC2
t 2 —
OSC3
t 2 —
OSC4
t — 200
IRLSTB
t 0 —
TRSTRH
Unit Figure
MHz
ns 23.1
ns 23.1
ns 23.1
ns 23.1
ns 23.1
MHz
MHz
ns 23.2(1)
ns 23.2(1)
ns 23.2(1)
ns 23.2(1)
ns 23.2(1)
ns 23.2(2)
ns 23.2(2)
ms 23.3, 23.5
ms 23.3, 23.5
t
cyc
ns 23.3, 23.5
t 23.3, 23.4, 23.5,
cyc
23.6


s 23.9, 23.10
ms 23.4, 23.6
ms 23.7
ms 23.8
ms
ms
ms


s 23.10
ns 23.3, 23.5