MB86941 Fujitsu Microelectronics, Inc., MB86941 Datasheet - Page 27

• Manufacturer Part Number: MB86941
• Description: Peripheral Lsi For Sparclite
• Manufacturer: Fujitsu Microelectronics, Inc.

* : Applied in prescaler external clock mode. When the prescaler output is used as a timer signal, the timer input
*1: Applied when the prescaler register SELECT field is set to “0.”
*2: Applied when the prescaler register SELECT field is set to any value other than “0.”
*3: When the prescaler register SELECT field is set to “0,” the PRSCKx output is fixed at “L” level.
*4: t
Prescaler input clock cycle time*
Prescaler input clock “H” level width*
Prescaler input clock “L” level width*
Prescaler input clock rise time*
Prescaler input clock fall time*
Prescaler output “L” level width*
Prescaler output “H” level width*
Prescaler output “L” level width*
Prescaler output “H” level width*
clock requirements must be met.
(5) Prescaler timer
• Prescaler input
• Prescaler output
N: Value set in the prescaler register PRESCALE VALUE field
M: Value set in the prescaler register SELECT field.
N: Value set in the prescaler register PRESCALE VALUE field.
Internal clock mode: t
External clock mode: t
PCK
ACLK0,
ACLK1
PRSCK0,
PRSCK1
has the following prescaler input clock period.
Parameter
Parameter
PCK
PCK
= 2 t
= t
ACK
1,
2,
1,
2,
*
*
*
*
CLK
t
3
3
PSCLW
3
3
(For t
(For t
ACK
t
ACHW
CLK
Symbol
, see “(5) Prescaler Timer Unit/Prescaler Input”)
t
t
t
ACHW
t
t
, see “(2) Clock Signals”)
ACLW
ACR
ACK
ACF
Min.
t
ACK
50
22
22
—
—
Symbol
t
t
t
t
MB86941
PSCHW
PSCHW
PSCLW
PSCLW
t
ACF
(MB86942: V
(MB86942: V
t
PSCHW
(MB86941: V
(MB86941: V
t
ACLW
Max.
—
—
—
5
5
DD
DD
Standard Value
= 3.3 V
= 3.3 V
N 2
N 2
DD
DD
N – 1
MB86941/942
Min.
= 5 V
= 5 V
40
15
15
1
—
—
M – 1
M – 1
MB86942
0.15 V, T
0.15 V, T
t
ACR
5%, T
5%, T
Max.
—
—
—
A
A
A
A
5
5
= 0 to +70 C)
= 0 to +70 C)
= 0 to +70 C)
= 0 to +70 C)
t
t
t
t
Unit
PCK
PCK
PCK
PCK
Unit
*
*
*
*
ns
ns
ns
ns
ns
4
4
4
4
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