diff --git a/components/util/include/ibus_data.h b/components/util/include/ibus_data.h
index 70a35bd6..787f5ef4 100644
--- a/components/util/include/ibus_data.h
+++ b/components/util/include/ibus_data.h
@@ -52,6 +52,8 @@
 
 #ifdef USING_IBUS_FASTER_GET
 
+#include "esp_attr.h"
+
 #ifndef DISABLE_IBUS_INLINE_FUNC
 #define IBUS_INLINE inline
 #else
@@ -83,9 +85,13 @@ typedef union _ibus_data {
 __ESP_IBUS_GET_DATA(uint8_t)
 __ESP_IBUS_GET_DATA(uint16_t)
 
+#define ESP_IBUS_ATTR                               WORD_ALIGNED_ATTR
+
 #define ESP_IBUS_GET_U8_DATA(_index, _pbuf)         __esp_ibus_get_uint8_t_data(_index, _pbuf) 
 #define ESP_IBUS_GET_U16_DATA(_index, _pbuf)        __esp_ibus_get_uint16_t_data(_index, _pbuf)
 #else
+#define ESP_IBUS_ATTR
+
 #define ESP_IBUS_GET_U8_DATA(_index, _pbuf)         ((const uint8_t *)_pbuf)[_index]
 #define ESP_IBUS_GET_U16_DATA(_index, _pbuf)        ((const uint16_t *)_pbuf)[_index]
 #endif
diff --git a/components/util/src/aes.c b/components/util/src/aes.c
index 4f242672..129f69e9 100644
--- a/components/util/src/aes.c
+++ b/components/util/src/aes.c
@@ -92,7 +92,7 @@
 /*
  * Forward S-box
  */
-static const uint8_t s_aes_fsb[256] __attribute__((aligned(4))) =
+static const uint8_t s_aes_fsb[256] ESP_IBUS_ATTR =
 {
     0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5,
     0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
@@ -219,7 +219,7 @@ static const uint32_t s_aes_ft3[256] = { FT };
 /*
  * Reverse S-box
  */
-static const uint8_t s_aes_rsb[256] __attribute__((aligned(4))) =
+static const uint8_t s_aes_rsb[256] ESP_IBUS_ATTR =
 {
     0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38,
     0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,
diff --git a/components/util/src/crc.c b/components/util/src/crc.c
index 75f7642d..3108b643 100644
--- a/components/util/src/crc.c
+++ b/components/util/src/crc.c
@@ -53,7 +53,7 @@ static const uint32_t crc32_le_table[256] = {
     0xb3667a2eL, 0xc4614ab8L, 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL, 0x2d02ef8dL
 };
 
-static const uint16_t crc16_le_table[256] = {
+static const uint16_t crc16_le_table[256] ESP_IBUS_ATTR = {
     0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
     0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
     0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
@@ -88,7 +88,7 @@ static const uint16_t crc16_le_table[256] = {
     0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78
 };
 
-static const uint8_t crc8_le_table[] = {
+static const uint8_t crc8_le_table[] ESP_IBUS_ATTR = {
     0x00, 0x5e, 0xbc, 0xe2, 0x61, 0x3f, 0xdd, 0x83, 0xc2, 0x9c, 0x7e, 0x20, 0xa3, 0xfd, 0x1f, 0x41,
     0x9d, 0xc3, 0x21, 0x7f, 0xfc, 0xa2, 0x40, 0x1e, 0x5f, 0x01, 0xe3, 0xbd, 0x3e, 0x60, 0x82, 0xdc,
     0x23, 0x7d, 0x9f, 0xc1, 0x42, 0x1c, 0xfe, 0xa0, 0xe1, 0xbf, 0x5d, 0x03, 0x80, 0xde, 0x3c, 0x62,