LH7A404N0F000B2 Sharp Microelectronics, LH7A404N0F000B2 Datasheet - Page 42

• Manufacturer Part Number: LH7A404N0F000B2
• Description: IC ARM9 BLUESTREAK MCU 324CABGA
• Manufacturer: Sharp Microelectronics
• Series: BlueStreak ; LH7Ar

Specifications of LH7A404N0F000B2

• Core Processor: ARM9
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: Audio CODEC, EBI/EMI, IrDA, MMC, SmartCard, SSP, UART/USART, USB
• Peripherals: AC'97, DMA, LCD, POR, PWM, WDT
• Number Of I /o: 64
• Program Memory Type: ROMless
• Ram Size: 80K x 8
• Voltage - Supply (vcc/vdd): 1.71 V ~ 3.6 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 324-CABGA
• For Use With: 568-4304 - BOARD EVAL FOR LH7A404
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: 425-2468; LH7A404N0F000B2

LH7A404
Synchronous Memory Controller Waveforms
chronous Burst Read (page already open). Figure 13
shows the waveform and timing for synchronous mem-
ory to activate a bank and Write.
42
NOTES:
1. SDRAMcmd is the combination of nRAS, nCAS, nSDWE, and nSDCSx.
2. tOVXXX represents tOVRA, tOVCA, tOVSDW, or tOVSC.
3. tOHXXX represents tOHRA, tOHCA, tOHSDW, or tOHSC.
4. nDQM is static LOW.
5. SDCKE is static HIGH.
SDRAMcmd
SBANK[1:0]
NOTES:
1. SDRAMcmd is the combination of nRAS, nCAS, nSWE, and nSCSx.
2. tOVXXX represents tOVRA, tOVCA, tOVSVW, or tOVSC. Refer to the AC timing table.
3. tOHXXX represents tOHRA, tOHCA, tOHSVW, or tOHSC.
Figure 12 shows the waveform and timing for a Syn-
SA[13:0],
SDRAMcmd
D[31:0]
SCLK
SA[13:0],
SB[1:0]
D[31:0]
SCLK
SCKE
tSCLK
Figure 13. Synchronous Bank Activate and Write
tOVA
t OVXXX
Figure 12. Synchronous Burst Read
READ
COLUMN
BANK,
t OHXXX
t OVB
tOVC
Version 1.0
tOVA
tOVXXX
ACTIVE
tISD tIHD
tOVA
BANK,
tOHXXX
ROW
DATA n
DATA n + 1
DATA n + 2
DATA n + 3
tOVD
WRITE
32-Bit System-on-Chip
COLUMN
DATA
BANK,
tOHD
Data Sheet
LH7A404-13
LH7A400-24