Specifications

’240x Highlights
1-6
1.4 ’240x Highlights
- The ’2407 has an external memory interface and is intended primarily for
emulation tools.
- The ’2406 is similar to the ’240x but lacks external memory interface.
- The ’2402 is a minimum-cost motor control device.
The device configurations available and their features are shown in Table 1–1.
Table 1–1. Hardware Features of ’240x Devices
Feature ’LF2407
†
’LF2406 ’LF2402 ’LC2406 ’LC2404 ’LC2402
’C2xx DSP Core Yes Yes Yes Yes Yes Yes
Instruction Cycle 33 ns 33 ns 33 ns 33 ns 33 ns 33 ns
MIPS (30 MHz) 30 MIPS 30 MIPS 30 MIPS 30 MIPS 30 MIPS 30 MIPS
RAM (16 bit word)
DARAM 544 544 544 544 544 544
RAM (16-bit word)
SARAM 2K 2K — 2K 1K —
On-chip Flash (16-bit word)
(4 sectors: 4K, 12K, 12K, 4K)
32K 32K 8K — — —
On-chip ROM (16-bit word) — — — 32K 16K 4K
Boot ROM (16-bit word) 256 256 256 — — —
External Memory Interface Yes — ————
Event Managers A and B
(EVA and EVB)
EVA, EVB EVA, EVB EVA EVA, EVB EVA, EVB EVA
S General-Purpose (GP) Timers 4 4 2 4 4 2
S Compare (CMP)/PWM 10/16 10/16 5/8 10/16 10/16 5/8
S Capture (CAP)/QEP 6/4 6/4 3/2 6/4 6/4 3/2
Watchdog Timer Yes Yes Yes Yes Yes Yes
10-Bit ADC Yes Yes Yes Yes Yes Yes
S Channels 16 16 8 16 16 8
S Conversion Time (minimum) 500 ns 500 ns 500 ns 500 ns 500 ns 500 ns
SPI Yes Yes — Yes Yes —
SCI Yes Yes Yes Yes Yes Yes
CAN Yes Yes — Yes — —
Digital I/O Pins 41 41 21 41 41 21
External Interrupts 5 5 3553
Supply Voltage 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V 3.3 V
Packaging 144 TQFP 100 TQFP 64 PQFP 100 TQFP 100 TQFP 64 PQFP
†
’LF2407, the full-featured device of the ’LF240x family of DSP controllers, is useful for emulation and code development.