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PDF S2R72V27 Data sheet ( Hoja de datos )
| Número de pieza | S2R72V27 | |
| Descripción | S2R72V27 | |
| Fabricantes | Epson | |
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S2R72V27
Data Sheet
www.DataSheet4U.com
Rev.1.00
1 page  
7.2 Recommended Operating Conditions....................................................................................... 18
7.3 DC Characteristics.................................................................................................................... 19
7.3.1 Current Consumption ...................................................................................................... 19
7.3.2 Input Characteristics........................................................................................................ 21
7.3.3 Output Characteristics ..................................................................................................... 22
7.3.4 Terminal Capacitance ...................................................................................................... 23
7.4 AC Characteristics.................................................................................................................... 24
7.4.1 Reset Timing ................................................................................................................... 24
7.4.2 Clock Timing.................................................................................................................... 24
7.4.3 CPU/DMA I/F Access Timing ........................................................................................... 26
7.4.3.1 Specifications for CVDD = 1.65 V to 3.6 V ................................................................... 26
7.4.3.2 Specifications when limited to CVDD = 3.0 V to 3.6 V (relaxed specifications).......... 27
7.4.4 USB I/F Timing ................................................................................................................ 28
8. Connection Examples .................................................................................................................... 29
8.1 CPU I/F Connection Example................................................................................................... 29
8.2 USB I/F Connection Example ................................................................................................... 30
9. Product Codes ................................................................................................................................ 31
10. External Dimension Diagrams ..................................................................................................... 32
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EPSON
S2R72V27 Data Sheet (Rev. 1.00)
5 Page 
4. Explanation of Functions
4.4 Power Management
This LSI includes a power management function featuring two power management states, SLEEP
and ACTIVE, together with the CPU_Cut power management state. (See Fig. 4.3.)
All function blocks are active in the ACTIVE state, whereas only the bare minimum circuits
necessary for restarting from standby mode are active in SLEEP state. CPU_Cut mode minimizes
power consumption attributable to the CPU-I/F input buffer.
ACTIVE
CPU
-I/F
OSC
FIFO
SIE UTM
SLEEP
CPU
-I/F*
OSC
FIFO
SIE UTM
CPU_Cut
CPU
-I/F**
OSC
FIFO
SIE UTM
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Active
Inactive
* The CPU-I/F is only partially active in SLEEP state.
The asynchronous access register can be accessed.
** CPU-I/F operation is suspended in CPU_Cut to minimize
power consumption attributable to the I/O input buffer.
Fig. 4.3 Power management states
6
EPSON
S2R72V27 Data Sheet (Rev. 1.00)
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet S2R72V27.PDF ] | |
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