tmpr4937 TOSHIBA Semiconductor CORPORATION, tmpr4937 Datasheet - Page 511

• Manufacturer Part Number: tmpr4937
• Description: 64-bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

V
PLL_Vdd1_A,
PLL_Vdd2_A
MASTERCLK
CGRESET *
RESET *
CCInt
PLL Oscillation Stability Time
CGRESET * Width Time
RESET * Width Time
21.5 AC characteristics
MASTERCLK Cycle
MASTERCLK Frequency
MASTERCLK High Time
MASTERCLK Low Time
CPUCLK Frequency
MASTERCLK Rise Time
MASTERCLK Fall Time
*1) V
*1) TX4937 operation is only guaranteed when the power is stable, PLL secures the PLL oscillation
21.5.1
21.5.2
, V
CCIO
stability time tMCP_PLL and is in the Enable state.
The difference of the stand up time ota power supply within 100 m seconds.
CCInt
MASTERCLK
Item
Item
* 1)
MASTERCLK AC characteristics
Power on AC characteristics
and V
MASTERCLK Oscillation Stability Time
CCIO
* 1)
0.8 V
0.2 V
t
f
t
must start up sumultaneously, or V
Symbol
Symbol
CC
CC
MCP_PLL
MCK_PLL
MCH_PLL
t
t
t
f
t
f
t
MCP
MCK
MCH
MCR
MCF
Figure 21.5.2 Timing Diagram: Power On Reset
MCL
CPU
Figure 21.5.1 Timing Diagram: MASTERCLK
(Tc = 0 – 70°C, V
(Tc = 0 – 70°C, V
t
MCP_PLL
TMPR4937XBG-300
TMPR4937XBG-333
Boot Configuration
Boot configuration
Boot configuration
Boot configuration
t
MCP
Conditions
Conditions
ADDR[2]=H
ADDR[2]=H
ADDR[2]=L
ADDR[2]=L
CCIO
CCIO
21-5
t
MCK_PLL
Chapter 21 Electrical Characteristics
= 3.3 V ± 0.2 V, V
= 3.3 V ± 0.2 V, V
CCInt
t
MCL
must be first.
t
MCR
3.125
Min.
Min.
12.5
7.5
CCInt
CCInt
30
50
50
⎯
⎯
10
2
2
t
1
1
MCH
t
MCH_PLL
t
= 1.5 V ± 0.1 V, VSS = 0 V)
= 1.5 V ± 0.1 V, VSS = 0 V)
MCF
Max.
133.3
Max.
33.3
320
300
333
1.5
1.5
80
⎯
⎯
⎯
Unit
MHz
MHz
MHz
Unit
ms
ms
ms
ns
ns
ns
ns
ns
ns