LH7A400
Data Sheet
FEATURES
• ARM922T™ Core:
– 32-bit ARM9TDMI™ RISC Core (200 MHz)
– 16KB Cache: 8KB Instruction Cache and
8KB Data Cache
– MMU (Windows CE™ Enabled)
• 80KB On-Chip Memory
• Programmable Interrupt Controller
• External Bus Interface
– 100 MHz
– Asynchronous SRAM/ROM/Flash
– Synchronous DRAM/Flash
– PCMCIA
– CompactFlash
• Clock and Power Management
– 32.768 kHz and 14.7456 MHz Oscillators
– Programmable PLL
• Low Power Modes (Typical)
– Run (125 mA), Halt (25 mA), Standby (42
µA)
• Programmable LCD Controller
– Up to 1,024 × 768 Resolution
– Supports STN, Color STN, AD-TFT, HR-TFT, TFT
– Up to 64 k-Colors and 15 Gray Shades
• DMA (10 Channels)
– AC97
– MMC
– USB
• USB Device Interface (USB 1.1)
• Synchronous Serial Port (SSP)
– Motorola SPI™
– Texas Instruments SSI
– National MICROWIRE™
32-Bit System-on-Chip
• Three Programmable Timers
• Three UARTs
– Classic IrDA (115 kbit/s)
• Smart Card Interface (ISO7816)
• Two DC-to-DC Converters
• MultiMediaCard™ Interface
• AC97 Codec Interface
• Smart Battery Monitor Interface
• Real Time Clock (RTC)
• Up to 60 General Purpose I/Os
• Watchdog Timer
• JTAG Debug Interface and Boundary Scan
• Operating Voltage
– 1.8 V Core
– 3.3 V Input/Output
• 5 V Tolerant Digital Inputs (except oscillator pins)
– Oscillator pins P15, P16, R13, and T13 are 1.8 V
± 10%.
• Operating Temperature
– 0°C to +70°C Commercial
– -40°C to +85°C Industrial (With Clock Frequency
Reduction)
• 256-Ball PBGA or 256-Ball CABGA Package
DESCRIPTION
The LH7A400, powered by an ARM922T, is a com-
plete System-on-Chip with a high level of integration to
satisfy a wide range of requirements and expectations.
This high degree of integration lowers overall sys-
tem costs, reduces development cycle time and accel-
erates product introduction.
Motorola SPI is a trademark of Motorola, Inc.
National Semiconductor MICROWIRE is a trademark of
National Semiconductor Corporation.
Windows CE is a trademark of Microsoft Corporation.
Data Sheet
Version 1.0
1
LH7A400
32-Bit System-on-Chip
Table 1. Functional Pin List (Cont’d)
PBGA CABGA
PIN
PIN
R11
N12
P12
T11
D3
H6
D4
E4
C2
R13
T13
P16
P15
P14
J6
K11
K10
P13
M12
P12
M10
R13
N11
E4
D1
E2
F2
D2
R14
R15
N14
M13
M12
J5
P14
P16
N15
N16
SIGNAL
VDDA
VSSA
nPOR
nURESET
WAKEUP
nPWRFL
nEXTPWR
XTALIN
XTALOUT
XTAL32IN
XTAL32OUT
CLKEN
PGMCLK
nCS0
nCS1
nCS2
nCS3/
nMMSPICS
DESCRIPTION
Analog Power for PLL
Analog Ground for PLL
Power On Reset
User Reset; should be pulled HIGH for normal or
JTAG operation.
Wake Up
Power Fail Signal
External Power
14.7456 MHz Crystal Oscillator pins. An external
clock source can be connected to XTALIN leav-
ing XTALOUT open.
Input
Input
RESET
STATE
STANDBY
STATE
OUTPUT
DRIVE
Input (Schmitt) Input
Input (Schmitt) Input
Input (Schmitt) Input
Input (Schmitt) Input
Input
LOW
Input
LOW
Input
Output
LOW
LOW
HIGH
HIGH
HIGH
HIGH
8 mA
8 mA
12 mA
12 mA
12 mA
12 mA
32.768 kHz Real Time Clock Crystal Oscillator Input
pins. An external clock source can be connected
Output
to XTAL32IN leaving XTAL32OUT open.
External Oscillator Clock Enable Output
Programmable Clock (14.7456 MHz MAX.)
Asynchronous Memory Chip Select 0
Asynchronous Memory Chip Select 1
Asynchronous Memory Chip Select 2
• Asynchronous Memory Chip Select 3
• MultiMediaCard SPI Mode Chip Select
LOW
LOW
HIGH
HIGH
HIGH
HIGH: nCS3
4
Version 1.0
Data Sheet
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